{"id":390,"date":"2024-08-19T10:00:40","date_gmt":"2024-08-19T10:00:40","guid":{"rendered":"https:\/\/pixelsconverter.online\/?page_id=390"},"modified":"2025-10-26T06:50:30","modified_gmt":"2025-10-26T06:50:30","slug":"vh-to-em-converter","status":"publish","type":"page","link":"https:\/\/toolsmate.online\/vi\/vh-to-em-converter\/","title":{"rendered":"B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM"},"content":{"rendered":"<style>.kb-row-layout-id390_edc5dc-82 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id390_edc5dc-82 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id390_edc5dc-82 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);max-width:var( --global-content-width, 1100px );padding-left:var(--global-content-edge-padding);padding-right:var(--global-content-edge-padding);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id390_edc5dc-82 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id390_edc5dc-82 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id390_edc5dc-82 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id390_edc5dc-82 alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top kb-theme-content-width\">\n<style>.kadence-column390_80dd3f-6a > .kt-inside-inner-col,.kadence-column390_80dd3f-6a > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_80dd3f-6a > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_80dd3f-6a > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_80dd3f-6a > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_80dd3f-6a > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_80dd3f-6a{position:relative;}@media all and (max-width: 1024px){.kadence-column390_80dd3f-6a > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_80dd3f-6a > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_80dd3f-6a\"><div class=\"kt-inside-inner-col\">\n<h1 class=\"wp-block-heading has-theme-palette-9-color has-text-color has-link-color wp-elements-902ade0889f140063622fc105627b35d\">B\u1ed8 CHUY\u1ec2N \u0110\u1ed4I VH SANG EM<\/h1>\n<\/div><\/div>\n\n\n<style>.kadence-column390_673bc0-16 > .kt-inside-inner-col,.kadence-column390_673bc0-16 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_673bc0-16 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_673bc0-16 > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_673bc0-16 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_673bc0-16 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_673bc0-16{position:relative;}@media all and (max-width: 1024px){.kadence-column390_673bc0-16 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_673bc0-16 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_673bc0-16\"><div class=\"kt-inside-inner-col\">\n<div class=\"container\">\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"viewportHeightInput\" placeholder=\"Nh\u1eadp Chi\u1ec1u cao Viewport\" value=\"1000\">\n        <label for=\"viewportHeightInput\">Chi\u1ec1u cao c\u1ee7a Viewport<\/label>\n    <\/div>\n    <!-- Icon for page change -->\n    <span id=\"pageChangeIcon\" class=\"rotate-icon\">\n        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 52 52\" fill=\"#000000\" class=\"CalculatorField_calculator-field__reverse-icon__vb2AT\">\n            <g>\n                <path d=\"M48.5,2h-3C44.7,2,44,2.7,44,3.5v7c0,0.9-1,1.5-1.6,0.8l0,0C37.7,6.1,31,3.4,23.7,4.1 c-2.6,0.2-5.1,1-7.4,2.2c-1.2,0.6-2.4,1.3-3.4,2.1c-0.7,0.5-0.8,1.6-0.2,2.3l2.1,2.1c0.5,0.5,1.3,0.6,1.9,0.2 c1.2-0.8,2.5-1.5,3.9-2.1c0.6-0.2,1.3-0.4,2-0.6c6.3-1.2,12.3,1.3,15.7,5.4c1.2,1.4,0.3,2.3-0.7,2.3h-7c-0.8,0-1.6,0.7-1.6,1.5v3 c0,0.8,0.8,1.5,1.6,1.5h18.2c0.7,0,1.2-0.6,1.2-1.3V3.5C50,2.7,49.3,2,48.5,2z\"><\/path>\n                <path d=\"M39.4,37.4c-0.6-0.6-1.5-0.6-2.1,0c-1.6,1.6-3.6,2.9-5.8,3.7c-0.6,0.2-1.3,0.4-2,0.6 c-6.3,1.2-12.3-1.3-15.7-5.4c-1.2-1.4-0.3-2.3,0.7-2.3h7c0.8,0,1.5-0.7,1.5-1.5v-3c0-0.8-0.7-1.5-1.5-1.5H3.3C2.6,28,2,28.6,2,29.3 v19.2C2,49.3,2.7,50,3.5,50h3C7.3,50,8,49.3,8,48.5v-7c0-0.9,1-1.5,1.6-0.8l0,0c4.6,5.2,11.4,7.9,18.7,7.2c2.6-0.2,5.1-1,7.4-2.2 c2.2-1.1,4.1-2.5,5.7-4.1c0.6-0.6,0.6-1.6,0-2.1L39.4,37.4z\"><\/path>\n            <\/g>\n        <\/svg>\n    <\/span>\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"vhUnitInput\" placeholder=\"Nh\u1eadp \u0111\u01a1n v\u1ecb VH\" value=\"250\">\n        <label for=\"vhUnitInput\">\u0110\u01a1n v\u1ecb VH<\/label>\n    <\/div>\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"emSizeInput\" placeholder=\"Nh\u1eadp K\u00edch th\u01b0\u1edbc EM\" value=\"16\">\n        <label for=\"emSizeInput\">K\u00edch th\u01b0\u1edbc EM<\/label>\n    <\/div>\n    <div class=\"result\" id=\"resultDisplay\">K\u1ebft qu\u1ea3 s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf \u0111\u00e2y<\/div>\n<\/div>\n\n\n<script>\n    const viewportHeightInput = document.getElementById('viewportHeightInput');\n    const vhUnitInput = document.getElementById('vhUnitInput');\n    const emSizeInput = document.getElementById('emSizeInput');\n    const resultDisplay = document.getElementById('resultDisplay');\n    const copyIcon = document.createElement('span');\n\n    \/\/ Function to convert VH to EM\n    function convertVHToEM() {\n        const viewportHeight = parseFloat(viewportHeightInput.value);\n        const vhUnit = parseFloat(vhUnitInput.value);\n        const emSize = parseFloat(emSizeInput.value);\n\n        if (!isNaN(viewportHeight) && !isNaN(vhUnit) && !isNaN(emSize)) {\n            const pxValue = (viewportHeight * vhUnit) \/ 100;\n            const emValue = pxValue \/ emSize;\n\n            \/\/ Display result, rounded if necessary\n            const displayValue = emValue % 1 === 0 ? emValue : emValue.toFixed(2);\n            resultDisplay.textContent = displayValue + ' em';\n        } else {\n            resultDisplay.textContent = 'Result will be shown here';\n        }\n        resultDisplay.appendChild(copyIcon);\n    }\n\n    \/\/ Add event listeners to input fields\n    viewportHeightInput.addEventListener('input', convertVHToEM);\n    vhUnitInput.addEventListener('input', convertVHToEM);\n    emSizeInput.addEventListener('input', convertVHToEM);\n\n    \/\/ Set initial conversion on page load with default values\n    convertVHToEM();\n\n    copyIcon.innerHTML = `<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\">\n      <path d=\"M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z\"\/>\n    <\/svg>`;\n    copyIcon.style.cursor = 'pointer';\n    copyIcon.style.marginLeft = '10px';\n    copyIcon.style.verticalAlign = 'middle';\n    copyIcon.style.transition = 'transform 0.3s ease';\n\n    \/\/ Copy to clipboard functionality\n    copyIcon.addEventListener('click', function() {\n        const emValue = resultDisplay.textContent;\n        if (emValue && emValue !== 'Result will be shown here') {\n            const valueToCopy = emValue.replace('em', '').trim();\n            navigator.clipboard.writeText(valueToCopy).then(() => {\n                copyIcon.style.transform = 'scale(1.2)';\n                setTimeout(() => {\n                    copyIcon.style.transform = 'scale(1)';\n                }, 200);\n            }).catch(err => {\n                console.error('Failed to copy text:', err);\n            });\n        }\n    });\n    copyIcon.classList.add('copy-icon');\n    \/\/ Add event listener for icon click to change the page\ndocument.getElementById('pageChangeIcon').addEventListener('click', function() {\n    \/\/ Change the URL to the desired page\n    window.location.href = 'https:\/\/toolsmate.online\/em-to-vh-converter\/'; \/\/ Replace with the desired page link\n});\n\n<\/script>\n<\/div><\/div>\n\n\n<style>.kadence-column390_a89e55-f5 > .kt-inside-inner-col,.kadence-column390_a89e55-f5 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_a89e55-f5 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_a89e55-f5 > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_a89e55-f5 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_a89e55-f5 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_a89e55-f5, .kadence-column390_a89e55-f5 h1, .kadence-column390_a89e55-f5 h2, .kadence-column390_a89e55-f5 h3, .kadence-column390_a89e55-f5 h4, .kadence-column390_a89e55-f5 h5, .kadence-column390_a89e55-f5 h6{color:var(--global-palette9, #ffffff);}.kadence-column390_a89e55-f5 a{color:var(--global-palette7, #EDF2F7);}.kadence-column390_a89e55-f5{position:relative;}@media all and (max-width: 1024px){.kadence-column390_a89e55-f5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_a89e55-f5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_a89e55-f5\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM<\/h2>\n\n\n\n<p>M\u1ed9t th\u00e1ch th\u1ee9c c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i khi t\u1ea1o m\u1ed9t trang web ho\u00e0n to\u00e0n \u0111\u00e1p \u1ee9ng s\u1ebd bao g\u1ed3m vi\u1ec7c c\u00e2n b\u1eb1ng nhi\u1ec1u th\u00e0nh ph\u1ea7n CSS sao cho to\u00e0n b\u1ed9 trang web tr\u00f4ng th\u1eadt \u1ea5n t\u01b0\u1ee3ng tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i VH sang EM c\u1ee7a ToolsMate. \u0110\u00e2y l\u00e0 m\u1ed9t ti\u1ec7n \u00edch tr\u1ef1c tuy\u1ebfn \u0111\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd, gi\u00fap chuy\u1ec3n \u0111\u1ed5i ngay l\u1eadp t\u1ee9c c\u00e1c \u0111\u01a1n v\u1ecb chi\u1ec1u cao khung nh\u00ecn (VH) sang \u0111\u01a1n v\u1ecb EM, cho ph\u00e9p c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 ph\u00e1t tri\u1ec3n web t\u1ea1o ra c\u00e1c b\u1ed1 c\u1ee5c nh\u1ea5t qu\u00e1n v\u00e0 linh ho\u1ea1t, ph\u00f9 h\u1ee3p ho\u00e0n h\u1ea3o v\u1edbi k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh v\u00e0 ki\u1ec3u ch\u1eef.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng tr\u1ef1c tuy\u1ebfn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb VH sang EM. Hai \u0111\u01a1n v\u1ecb CSS n\u00e0y (VH v\u00e0 EM) c\u00f3 vai tr\u00f2 kh\u00e1c nhau trong thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng v\u00ec VH \u0111\u01b0\u1ee3c quy cho chi\u1ec1u cao c\u1eeda s\u1ed5 tr\u00ecnh duy\u1ec7t v\u00e0 EM theo k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef.<\/p>\n\n\n\n<p>C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 tinh ch\u1ec9nh m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t ph\u1ea7n t\u1eed v\u00e0 v\u0103n b\u1ea3n trong \u0111\u00f3 b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i ch\u00fang sang nhau. \u0110i\u1ec1u n\u00e0y s\u1ebd \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf c\u00e2n b\u1eb1ng v\u1ec1 m\u1eb7t th\u1ea9m m\u1ef9 tr\u00ean c\u00e1c thi\u1ebft b\u1ecb v\u00e0 \u0111\u1ed9 ph\u00e2n gi\u1ea3i m\u00e0n h\u00ecnh.<\/p>\n\n\n\n<p>v\u00ed d\u1ee5 khi b\u1ea1n thi\u1ebft k\u1ebf m\u1ed9t ph\u1ea7n trang \u0111\u1ea7y \u0111\u1ee7 theo \u0111\u01a1n v\u1ecb VH, nh\u01b0ng b\u1ea1n c\u1ea7n n\u00f3 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi ki\u1ec3u ch\u1eef (v\u00ed d\u1ee5 nh\u01b0 ti\u00eau \u0111\u1ec1 ph\u1ea3n h\u1ed3i ho\u1eb7c b\u1ed1 c\u1ee5c linh ho\u1ea1t), th\u00ec vi\u1ec7c thay \u0111\u1ed5i VH th\u00e0nh EM c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n duy tr\u00ec t\u1ef7 l\u1ec7 t\u1ed1i \u01b0u \u0111\u00f3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kh\u00e1i ni\u1ec7m \u0111\u01a1n v\u1ecb: VH v\u00e0 EM.<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">VH (Chi\u1ec1u cao khung nh\u00ecn) l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>VH l\u00e0 Chi\u1ec1u cao c\u1ee7a Viewport.<\/p>\n\n\n\n<p>CSS VH 1 = 1\/100 chi\u1ec1u cao c\u1ee7a tr\u00ecnh duy\u1ec7t. <\/p>\n\n\n\n<p><strong>V\u00ed d\u1ee5:<\/strong><\/p>\n\n\n\n<p>Chi\u1ec1u cao c\u1ee7a khung nh\u00ecn l\u00e0 1000px, do \u0111\u00f3: 1 VH = 10px.<\/p>\n\n\n\n<p><strong>\u0110\u01a1n v\u1ecb VH th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea1o v\u00f2ng l\u1eb7p m\u00e0n h\u00ecnh ho\u00e0n ch\u1ec9nh c\u1ee7a c\u00e1c anh h\u00f9ng.<\/li>\n\n\n\n<li>\u0110i\u1ec1u ch\u1ec9nh c\u00e1c th\u00e0nh ph\u1ea7n b\u1ed1 c\u1ee5c d\u1ef1a tr\u00ean kh\u00f4ng gian m\u00e0n h\u00ecnh c\u00f3 s\u1eb5n.<\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng n\u0103ng \u0111\u1ed9ng v\u00e0 t\u1eadn t\u00e2m.<\/li>\n<\/ul>\n\n\n\n<p>VH c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i thay \u0111\u1ed5i b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u ho\u1eb7c b\u1ed1 c\u1ee5c (v\u00ed d\u1ee5 khi xoay \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng) \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u1edbi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf web \u0111\u00e1p \u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">EM l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>EM l\u00e0 \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng so s\u00e1nh trong CSS v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef, chi\u1ec1u r\u1ed9ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1 EM= k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef c\u1ee7a ph\u1ea7n t\u1eed.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao, \u1edf k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef 16px c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng, 1 EM = 16px c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n\n\n\n<p><strong>C\u00f4ng d\u1ee5ng ch\u00ednh c\u1ee7a EM:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ph\u00e1t minh v\u1ec1 ki\u1ec3u ch\u1eef c\u00f3 th\u1ec3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc theo y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li>Ph\u00e1t tri\u1ec3n c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ed9ng trong \u0111\u00f3 t\u1ef7 l\u1ec7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef.<\/li>\n\n\n\n<li>Th\u01b0\u1eddng xuy\u00ean t\u1ea1o kho\u1ea3ng c\u00e1ch v\u00e0 th\u1ee9 b\u1eadc cho c\u00e1c thi\u1ebft k\u1ebf.<\/li>\n<\/ul>\n\n\n\n<p>Gi\u00e1 tr\u1ecb c\u1ee7a EM t\u0103ng ho\u1eb7c gi\u1ea3m m\u1ed9t c\u00e1ch linh ho\u1ea1t, kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c \u0111\u01a1n v\u1ecb c\u1ed1 \u0111\u1ecbnh l\u00e0 pixel (px), gi\u00fap ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n kh\u1ea3 n\u0103ng thay \u0111\u1ed5i t\u1ef7 l\u1ec7 ph\u1ea3n h\u1ed3i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f4ng th\u1ee9c chuy\u1ec3n \u0111\u1ed5i VH sang EM<\/h2>\n\n\n\n<p>\u0110\u1ec3 chuy\u1ec3n \u0111\u1ed5i VH sang EM, b\u1ea1n c\u1ea7n bi\u1ebft s\u1ed1 pixel trong VH, s\u1ed1 pixel trong EM (th\u01b0\u1eddng l\u00e0 k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef).<\/p>\n\n\n\n<p><strong>C\u00f4ng Th\u1ee9c:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-2-background-color has-background\"><code>EM = Gi\u00e1 tr\u1ecb VH x Chi\u1ec1u cao khung nh\u00ecn t\u00ednh b\u1eb1ng px \/ K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef t\u00ednh b\u1eb1ng pxx100<\/code><\/pre>\n\n\n\n<p>Nhi\u1ec1u \u1ee9ng d\u1ee5ng thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng th\u01b0\u1eddng d\u1ef1a tr\u00ean t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i trung b\u00ecnh qu\u00e1 \u0111\u01a1n gi\u1ea3n l\u00e0 1 VH = 0,35 EM l\u00e0m \u0111i\u1ec3m tham chi\u1ebfu.<\/p>\n\n\n\n<p><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/strong><\/p>\n\n\n\n<p><strong>Ch\u00fang ta h\u00e3y n\u00f3i:<\/strong><\/p>\n\n\n\n<p>Chi\u1ec1u cao khung nh\u00ecn = 1000px<\/p>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef c\u01a1 b\u1ea3n = 16px<\/p>\n\n\n\n<p><strong>B\u1ea1n mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i 10 VH sang EM.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-2-background-color has-background\"><code>EM = 10 \u00d7 1000\/16 \u00d7 100 \u200b= 6,25EM<\/code><\/pre>\n\n\n\n<p>V\u00ec th\u1ebf, <strong>10 VH = 6,25 EM.<\/strong><\/p>\n\n\n\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 gi\u00fap cho ph\u1ea7n t\u1eed \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo k\u00edch th\u01b0\u1edbc v\u0103n b\u1ea3n m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i t\u1ef7 l\u1ec7 b\u1ed1 c\u1ee5c tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ea3ng chuy\u1ec3n \u0111\u1ed5i VH sang EM<\/h3>\n\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng chuy\u1ec3n \u0111\u1ed5i ph\u1ed5 bi\u1ebfn t\u1eeb VH sang EM, d\u1ef1a tr\u00ean t\u1ef7 gi\u00e1 chuy\u1ec3n \u0111\u1ed5i c\u1ee7a <strong>1 VH = 0,35 EM<\/strong>:<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column390_ee4483-c2 > .kt-inside-inner-col,.kadence-column390_ee4483-c2 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_ee4483-c2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_ee4483-c2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_ee4483-c2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_ee4483-c2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_ee4483-c2{position:relative;}@media all and (max-width: 1024px){.kadence-column390_ee4483-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_ee4483-c2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_ee4483-c2\"><div class=\"kt-inside-inner-col\">\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\">\n    <thead>\n        <tr>\n            <th>Chi\u1ec1u cao c\u1ee7a Viewport<\/th>\n            <th>\u0110\u01a1n v\u1ecb VH<\/th>\n            <th>K\u00edch th\u01b0\u1edbc EM<\/th>\n            <th>Gi\u00e1 tr\u1ecb EM (em)<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>800<\/td>\n            <td>50<\/td>\n            <td>32<\/td>\n            <td>25,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>55<\/td>\n            <td>32<\/td>\n            <td>27,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>60<\/td>\n            <td>32<\/td>\n            <td>30,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>65<\/td>\n            <td>32<\/td>\n            <td>32,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>70<\/td>\n            <td>32<\/td>\n            <td>35,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>75<\/td>\n            <td>32<\/td>\n            <td>37,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>80<\/td>\n            <td>32<\/td>\n            <td>40,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>85<\/td>\n            <td>32<\/td>\n            <td>42,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>90<\/td>\n            <td>32<\/td>\n            <td>45,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>95<\/td>\n            <td>32<\/td>\n            <td>47,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>50<\/td>\n            <td>32<\/td>\n            <td>28.13 gi\u1edd<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>55<\/td>\n            <td>32<\/td>\n            <td>30,94 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>60<\/td>\n            <td>32<\/td>\n            <td>33,75 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>65<\/td>\n            <td>32<\/td>\n            <td>36,56 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>70<\/td>\n            <td>32<\/td>\n            <td>39,37 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>75<\/td>\n            <td>32<\/td>\n            <td>42,19 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>80<\/td>\n            <td>32<\/td>\n            <td>45,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>85<\/td>\n            <td>32<\/td>\n            <td>47,81 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>90<\/td>\n            <td>32<\/td>\n            <td>50,62 em<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>95<\/td>\n            <td>32<\/td>\n            <td>53,44 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>50<\/td>\n            <td>32<\/td>\n            <td>31,25 ph\u00fat<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>55<\/td>\n            <td>32<\/td>\n            <td>34,38 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>60<\/td>\n            <td>32<\/td>\n            <td>37,50 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>65<\/td>\n            <td>32<\/td>\n            <td>40,62 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>70<\/td>\n            <td>32<\/td>\n            <td>43,75 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>75<\/td>\n            <td>32<\/td>\n            <td>46,88 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>80<\/td>\n            <td>32<\/td>\n            <td>50,00 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>85<\/td>\n            <td>32<\/td>\n            <td>53,12 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>90<\/td>\n            <td>32<\/td>\n            <td>56,25 em<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>95<\/td>\n            <td>32<\/td>\n            <td>59,38 em<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n<\/div><\/div>\n\n\n<style>.kadence-column390_a04659-97 > .kt-inside-inner-col,.kadence-column390_a04659-97 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_a04659-97 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_a04659-97 > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_a04659-97 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_a04659-97 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_a04659-97, .kadence-column390_a04659-97 h1, .kadence-column390_a04659-97 h2, .kadence-column390_a04659-97 h3, .kadence-column390_a04659-97 h4, .kadence-column390_a04659-97 h5, .kadence-column390_a04659-97 h6{color:var(--global-palette9, #ffffff);}.kadence-column390_a04659-97 a{color:var(--global-palette9, #ffffff);}.kadence-column390_a04659-97{position:relative;}@media all and (max-width: 1024px){.kadence-column390_a04659-97 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_a04659-97 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_a04659-97\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading\">S\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM.<\/h2>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang ToolsMate m\u1ed9t c\u00e1ch nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng. Sau \u0111\u00e2y l\u00e0 quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc th\u1ef1c hi\u1ec7n:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: Nh\u1eadp Gi\u00e1 tr\u1ecb VH<\/h3>\n\n\n\n<p>Nh\u1eadp VH c\u1ea7n thi\u1ebft v\u00e0o \u00f4 nh\u1eadp li\u1ec7u \u0111\u1ea7u ti\u00ean. V\u00ed d\u1ee5, b\u1ea1n \u0111ang thi\u1ebft k\u1ebf m\u1ed9t container v\u1edbi chi\u1ec1u cao gi\u1ea3 \u0111\u1ecbnh l\u00e0 15 VH, v\u00ec v\u1eady b\u1ea1n nh\u1eadp 15.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 2: L\u1ea5y EM t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/h3>\n\n\n\n<p>Sau khi nh\u1eadp gi\u00e1 tr\u1ecb VH v\u00e0o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u00ednh to\u00e1n v\u00e0 hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb EM t\u01b0\u01a1ng \u1ee9ng trong h\u1ed9p th\u1ee9 hai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 3: Chuy\u1ec3n \u0111\u1ed5i ng\u01b0\u1ee3c (T\u00f9y ch\u1ecdn)<\/h3>\n\n\n\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 nh\u1eadp gi\u00e1 tr\u1ecb EM \u0111\u1ec3 ki\u1ec3m tra gi\u00e1 tr\u1ecb \u0111\u00f3 s\u1ebd nh\u01b0 th\u1ebf n\u00e0o trong VH \u2013 r\u1ea5t ti\u1ec7n l\u1ee3i khi chuy\u1ec3n \u0111\u1ed5i gi\u1eefa b\u1ed1 c\u1ee5c d\u1ef1a tr\u00ean ki\u1ec3u ch\u1eef v\u00e0 b\u1ed1 c\u1ee5c d\u1ef1a tr\u00ean khung nh\u00ecn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: \u00c1p d\u1ee5ng v\u00e0o CSS c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n<p>L\u1ea5y gi\u00e1 tr\u1ecb \u0111\u00e3 chuy\u1ec3n \u0111\u1ed5i v\u00e0 \u0111\u1eb7t v\u00e0o b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u c\u1ee7a b\u1ea1n \u0111\u1ec3 c\u00f3 th\u1ec3 c\u00f3 t\u1ef7 l\u1ec7 th\u1ed1ng nh\u1ea5t trong thi\u1ebft k\u1ebf.<\/p>\n\n\n\n<p>V\u1eady l\u00e0 xong! Kh\u00f4ng c\u1ea7n ph\u1ea3i t\u00ednh to\u00e1n ph\u1ee9c t\u1ea1p hay t\u00ednh to\u00e1n th\u1ee7 c\u00f4ng \u2013 c\u00f4ng c\u1ee5 s\u1ebd t\u00ednh to\u00e1n m\u1ecdi th\u1ee9 ch\u1ec9 trong v\u00e0i gi\u00e2y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang EM c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m.<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. L\u00e0m cho thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng tr\u1edf n\u00ean th\u1ef1c t\u1ebf.<\/h3>\n\n\n\n<p>C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 nhanh ch\u00f3ng thay \u0111\u1ed5i t\u1ef7 l\u1ec7 b\u1ed1 c\u1ee5c d\u1ef1a tr\u00ean khung nh\u00ecn sang t\u1ef7 l\u1ec7 d\u1ef1a tr\u00ean v\u0103n b\u1ea3n v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. T\u0103ng t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a thi\u1ebft k\u1ebf.<\/h3>\n\n\n\n<p>Chi\u1ebfn l\u01b0\u1ee3c VH v\u00e0 EM \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u1ec1 m\u1eb7t h\u00ecnh \u1ea3nh trong k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0 ki\u1ec3u ch\u1eef trong c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Ti\u1ebft ki\u1ec7m th\u1eddi gian<\/h3>\n\n\n\n<p>B\u1ea1n s\u1ebd kh\u00f4ng c\u00f2n ph\u1ea3i t\u00ednh to\u00e1n m\u1ecdi th\u1ee9 theo c\u00e1ch th\u1ee7 c\u00f4ng n\u1eefa, tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i s\u1ebd cung c\u1ea5p cho b\u1ea1n nh\u1eefng con s\u1ed1 cu\u1ed1i c\u00f9ng ngay l\u1eadp t\u1ee9c v\u00e0 b\u1ea1n s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c th\u1eddi gian v\u00e0 c\u00f3 th\u1ec3 s\u00e1ng t\u1ea1o trong thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh thay v\u00ec t\u1ed1n th\u1eddi gian v\u00e0o vi\u1ec7c t\u00ednh to\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u01afu ti\u00ean c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn.<\/h3>\n\n\n\n<p>V\u00ec \u0111\u01a1n v\u1ecb EM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp theo k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u00e0 ng\u01b0\u1eddi d\u00f9ng mong mu\u1ed1n, b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m cho thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh th\u00e2n thi\u1ec7n v\u00e0 d\u1ec5 \u0111\u1ecdc h\u01a1n ch\u1ec9 b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i VH\/EM.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. D\u00e0nh cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf.<\/h3>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i n\u00e0y cho ph\u00e9p b\u1ea1n l\u00e0m cho c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh d\u1ec5 d\u00e0ng h\u01a1n m\u1ed9t ch\u00fat khi b\u1ea1n l\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n front-end ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh c\u00e1c khung CSS ho\u1eb7c b\u1ea1n l\u00e0 nh\u00e0 thi\u1ebft k\u1ebf \u0111ang th\u1eed nghi\u1ec7m c\u00e1c b\u1ed1 c\u1ee5c \u0111\u00e1p \u1ee9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1ed9t ph\u1ea7n c\u1ee7a m\u00e0n h\u00ecnh:<\/strong> Thi\u1ebft k\u1ebf to\u00e0n m\u00e0n h\u00ecnh c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng.<\/li>\n\n\n\n<li><strong>Ki\u1ec3u ch\u1eef \u0111\u1ed9ng:<\/strong> T\u1ef7 l\u1ec7 v\u0103n b\u1ea3n tr\u00ean v\u00f9ng ch\u1ee9a.<\/li>\n\n\n\n<li><strong>Giao di\u1ec7n \u1ee9ng d\u1ee5ng web: <\/strong>Ki\u1ebfn tr\u00fac c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ed1 c\u1ee5c linh ho\u1ea1t.<\/li>\n\n\n\n<li><strong>T\u1ed1i \u01b0u h\u00f3a \u0111a n\u1ec1n t\u1ea3ng:<\/strong> N\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u00f3 t\u1ef7 l\u1ec7 t\u01b0\u01a1ng t\u1ef1 gi\u1eefa m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, m\u00e1y t\u00ednh b\u1ea3ng v\u00e0 thi\u1ebft b\u1ecb di \u0111\u1ed9ng.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ).<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. T\u1ea1i sao t\u00f4i ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m vi\u1ec7c t\u1eeb VH \u0111\u1ebfn EM?<\/h3>\n\n\n\n<p>T\u1ef7 l\u1ec7 VH sang EM r\u1ea5t h\u1eefu \u00edch trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n theo k\u00edch th\u01b0\u1edbc v\u0103n b\u1ea3n. VH s\u1eed d\u1ee5ng chi\u1ec1u cao khung nh\u00ecn, tr\u00e1i ng\u01b0\u1ee3c v\u1edbi EM s\u1eed d\u1ee5ng k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef. S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa hai t\u1ef7 l\u1ec7 n\u00e0y s\u1ebd \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n trong thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u00ean nhi\u1ec1u m\u00e0n h\u00ecnh kh\u00e1c nhau v\u00e0 d\u1ef1a tr\u00ean s\u1edf th\u00edch c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Nh\u01b0ng s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa VH v\u00e0 EM l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>VH ph\u00f9 h\u1ee3p v\u1edbi chi\u1ec1u cao tr\u00ecnh duy\u1ec7t, do \u0111\u00f3 ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf to\u00e0n trang ho\u1eb7c thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng. Ng\u01b0\u1ee3c l\u1ea1i, EM li\u00ean quan \u0111\u1ebfn k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef, do \u0111\u00f3 ph\u00f9 h\u1ee3p h\u01a1n khi c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 v\u0103n b\u1ea3n v\u00e0 kho\u1ea3ng c\u00e1ch t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1eeb VH sang EM ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n<p>N\u00f3 li\u00ean quan \u0111\u1ebfn k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef v\u00e0 k\u00edch th\u01b0\u1edbc khung nh\u00ecn. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u00f3 t\u1ef7 l\u1ec7 chu\u1ea9n (1 VH 0,35 EM) \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh d\u1ef1a tr\u00ean thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. C\u00e1c th\u00e0nh ph\u1ea7n b\u1ed1 c\u1ee5c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi EM kh\u00f4ng?<\/h3>\n\n\n\n<p>Ho\u00e0n to\u00e0n \u0111\u00fang. EM kh\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng v\u1edbi v\u0103n b\u1ea3n m\u00e0 c\u00f2n v\u1edbi kho\u1ea3ng \u0111\u1ec7m, l\u1ec1 v\u00e0 k\u00edch th\u01b0\u1edbc v\u00f9ng ch\u1ee9a \u2013 k\u00edch th\u01b0\u1edbc v\u00f9ng ch\u1ee9a c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo c\u00f9ng t\u1ef7 l\u1ec7 v\u1edbi ki\u1ec3u ch\u1eef.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. C\u00f4ng c\u1ee5 n\u00e0y c\u00f3 mi\u1ec5n ph\u00ed kh\u00f4ng?<\/h3>\n\n\n\n<p>C\u00f3! C\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i VH sang EM tr\u00ean ToolsMate c\u0169ng ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed v\u00e0 cho \u0111\u1ebfn nay, n\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean tr\u00ecnh duy\u1ec7t, kh\u00f4ng y\u00eau c\u1ea7u t\u1ea3i xu\u1ed1ng v\u00e0\/ho\u1eb7c \u0111\u0103ng k\u00fd. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea5t c\u1ee9 l\u00fac n\u00e0o khi c\u1ea7n t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>\u0110\u01a1n v\u1ecb chuy\u1ec3n \u0111\u1ed5i s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p trong thi\u1ebft k\u1ebf web \u0111\u00e1p \u1ee9ng l\u00e0 ToolsMate, m\u1ed9t c\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i VH sang EM. C\u00f4ng c\u1ee5 n\u00e0y chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb chi\u1ec1u cao c\u1ee7a khung nh\u00ecn, gi\u00fap thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa b\u1ed1 c\u1ee5c v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecdc ch\u1eef, cho ph\u00e9p b\u1ea1n t\u1ea1o ra c\u00e1c thi\u1ebft k\u1ebf hi\u1ec7n \u0111\u1ea1i, d\u1ec5 ti\u1ebfp c\u1eadn v\u00e0 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra nh\u1eefng thi\u1ebft k\u1ebf c\u00e2n b\u1eb1ng \u0111\u1eb9p m\u1eaft.<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column390_13a06e-fd > .kt-inside-inner-col{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kadence-column390_13a06e-fd > .kt-inside-inner-col,.kadence-column390_13a06e-fd > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_13a06e-fd > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_13a06e-fd > .kt-inside-inner-col{flex-direction:column;}.kadence-column390_13a06e-fd > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column390_13a06e-fd > .kt-inside-inner-col{background-color:var(--global-palette9, #ffffff);}.kadence-column390_13a06e-fd > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_13a06e-fd{position:relative;}@media all and (max-width: 1024px){.kadence-column390_13a06e-fd > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column390_13a06e-fd > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_13a06e-fd\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading has-theme-palette-2-color has-text-color has-link-color wp-elements-5dc699de47f5c1f575d7682297dc0e90\">Th\u00eam nhi\u1ec1u chuy\u1ec3n \u0111\u1ed5i VH &amp; EM<\/h2>\n<\/div><\/div>\n\n\n<style>.kadence-column390_792fea-a1 > .kt-inside-inner-col{display:flex;}.kadence-column390_792fea-a1 > .kt-inside-inner-col{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kadence-column390_792fea-a1 > .kt-inside-inner-col,.kadence-column390_792fea-a1 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column390_792fea-a1 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column390_792fea-a1 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:flex-start;}.kadence-column390_792fea-a1 > .kt-inside-inner-col > *, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column390_792fea-a1 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kt-row-column-wrap > .kadence-column390_792fea-a1{align-self:flex-start;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1 > .kt-inside-inner-col{align-items:flex-start;}.kadence-column390_792fea-a1 > .kt-inside-inner-col{background-color:var(--global-palette9, #ffffff);}.kadence-column390_792fea-a1 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column390_792fea-a1, .kadence-column390_792fea-a1 h1, .kadence-column390_792fea-a1 h2, .kadence-column390_792fea-a1 h3, .kadence-column390_792fea-a1 h4, .kadence-column390_792fea-a1 h5, .kadence-column390_792fea-a1 h6{color:var(--global-palette2, #2B6CB0);}.kadence-column390_792fea-a1 a{color:var(--global-palette2, #2B6CB0);}.kadence-column390_792fea-a1{position:relative;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column390_792fea-a1{align-self:flex-start;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1 > .kt-inside-inner-col{align-items:flex-start;}}@media all and (max-width: 1024px){.kadence-column390_792fea-a1 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:flex-start;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column390_792fea-a1 > .kt-inside-inner-col > *, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column390_792fea-a1 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column390_792fea-a1{align-self:flex-start;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column390_792fea-a1 > .kt-inside-inner-col{align-items:flex-start;}.kadence-column390_792fea-a1 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column390_792fea-a1 > .kt-inside-inner-col > *, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column390_792fea-a1 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column390_792fea-a1 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column390_792fea-a1 kb-section-dir-horizontal\"><div class=\"kt-inside-inner-col\">\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-cm-converter\/\">EM sang CM<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-rem-converter\/\">EM sang REM<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-px-converter\/\">EM sang PX<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-vw-converter\/\">EM sang VW<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-pt-converter\/\">EM sang PT<\/a><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/toolsmate.online\/vi\/em-to-in-converter\/\">EM \u0110\u1ebeN INCH<\/a><\/li>\n\n\n\n<li><a 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That is easily achievable through the VH&#8230;<\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"class_list":["post-390","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>VH to EM Converter | Convert Viewport Height Units to EM Units Easily<\/title>\n<meta name=\"description\" content=\"Convert viewport height (VH) units to EM units quickly with our VH to EM Converter. 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