{"id":7221,"date":"2026-09-22T13:23:15","date_gmt":"2026-09-22T11:23:15","guid":{"rendered":"https:\/\/hi-technologies.ch\/screen-size-in-inches-and-cm-full-conversion-chart\/"},"modified":"2026-09-22T13:46:34","modified_gmt":"2026-09-22T11:46:34","slug":"screen-size-in-inches-and-cm-full-conversion-chart","status":"publish","type":"post","link":"https:\/\/hi-technologies.ch\/en\/screen-size-in-inches-and-cm-full-conversion-chart\/","title":{"rendered":"Screen size in inches and cm: full conversion chart"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-a-retenir\">Key takeaways<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>1 inch = 2.54 cm. The diagonal quoted for a display therefore converts by multiplying the inches by 2.54.&#13;\n<\/li>\n\n\n\n<li>Two displays with the same diagonal do not have the same surface area depending on the aspect ratio: a 65 inch in 16:9 gives 1.16 m\u00b2 (143.9 x 80.9 cm), whereas a 65 inch in 21:9 gives 0.99 m\u00b2 (151.7 x 65.0 cm).&#13;\n<\/li>\n\n\n\n<li>The diagonal alone is therefore not enough: width and height are what determine whether a display fits on a wall, in a recess or inside a cabinet.&#13;\n<\/li>\n\n\n\n<li>The dimensions quoted correspond to the active panel. The complete device is always slightly larger, which matters for custom integration.&#13;\n<\/li>\n<\/ul>\n\n<p>Display size is always quoted as a diagonal, in inches. Here are the full conversion charts and the calculation formulas.&#13;\n&#13;\n<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-tableau-de-conversion-des-tailles-d-ecran-en-16-9\">Screen size conversion chart in 16:9<\/h2>\n\n<p>16:9 is the reference aspect ratio for displays, professional and consumer alike. All the values below correspond to the active panel, rounded to the millimetre.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Inches<\/th><th>Diagonal (cm)<\/th><th>Width (cm)<\/th><th>Height (cm)<\/th><th>Surface area (m\u00b2)<\/th><\/tr><\/thead><tbody><tr><td>24<\/td><td>61,0<\/td><td>53,1<\/td><td>29,9<\/td><td>0,16<\/td><\/tr><tr><td>27<\/td><td>68,6<\/td><td>59,8<\/td><td>33,6<\/td><td>0,20<\/td><\/tr><tr><td>32<\/td><td>81,3<\/td><td>70,8<\/td><td>39,8<\/td><td>0,28<\/td><\/tr><tr><td>40<\/td><td>101,6<\/td><td>88,6<\/td><td>49,8<\/td><td>0,44<\/td><\/tr><tr><td>43<\/td><td>109,2<\/td><td>95,2<\/td><td>53,5<\/td><td>0,51<\/td><\/tr><tr><td>49<\/td><td>124,5<\/td><td>108,5<\/td><td>61,0<\/td><td>0,66<\/td><\/tr><tr><td>50<\/td><td>127,0<\/td><td>110,7<\/td><td>62,3<\/td><td>0,69<\/td><\/tr><tr><td>55<\/td><td>139,7<\/td><td>121,8<\/td><td>68,5<\/td><td>0,83<\/td><\/tr><tr><td>60<\/td><td>152,4<\/td><td>132,8<\/td><td>74,7<\/td><td>0,99<\/td><\/tr><tr><td>65<\/td><td>165,1<\/td><td>143,9<\/td><td>80,9<\/td><td>1,16<\/td><\/tr><tr><td>70<\/td><td>177,8<\/td><td>155,0<\/td><td>87,2<\/td><td>1,35<\/td><\/tr><tr><td>75<\/td><td>190,5<\/td><td>166,0<\/td><td>93,4<\/td><td>1,55<\/td><\/tr><tr><td>80<\/td><td>203,2<\/td><td>177,1<\/td><td>99,6<\/td><td>1,76<\/td><\/tr><tr><td>85<\/td><td>215,9<\/td><td>188,2<\/td><td>105,8<\/td><td>1,99<\/td><\/tr><tr><td>86<\/td><td>218,4<\/td><td>190,4<\/td><td>107,1<\/td><td>2,04<\/td><\/tr><tr><td>98<\/td><td>248,9<\/td><td>217,0<\/td><td>122,0<\/td><td>2,65<\/td><\/tr><tr><td>100<\/td><td>254,0<\/td><td>221,4<\/td><td>124,5<\/td><td>2,76<\/td><\/tr><tr><td>105<\/td><td>266,7<\/td><td>232,4<\/td><td>130,8<\/td><td>3,04<\/td><\/tr><tr><td>110<\/td><td>279,4<\/td><td>243,5<\/td><td>137,0<\/td><td>3,34<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" id=\"h-les-formules-de-conversion\">The conversion formulas<\/h2>\n\n<p>For a diagonal expressed in inches, on a display with a 16:9 aspect ratio:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><ul>&#13;\n \t<li><strong>Diagonal in cm<\/strong>\u00a0= inches multiplied by 2.54.<\/li>&#13;\n<\/ul><\/li>\n\n\n\n<li><ul>&#13;\n \t<li><strong>Width in cm<\/strong>\u00a0= diagonal in cm multiplied by 0.8716.<\/li>&#13;\n<\/ul><\/li>\n\n\n\n<li><ul>&#13;\n \t<li><strong>Height in cm<\/strong>\u00a0= diagonal in cm multiplied by 0.4903.<\/li>&#13;\n<\/ul><\/li>\n<\/ul>\n\n<p>These two coefficients come from Pythagoras&#8217; theorem applied to the 16:9 ratio. They change with the aspect ratio: 0.8480 and 0.5300 in 16:10, then 0.8000 and 0.6000 in 4:3.&#13;\n&#13;\n<\/p>\n\n<p><strong>Example for a 75 inch display in 16:9:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Diagonal: 75 x 2.54 = 190.5 cm<\/li>\n\n\n\n<li>Width: 190.5 x 0.8716 = 166.0 cm<\/li>\n\n\n\n<li>Height: 190.5 x 0.4903 = 93.4 cm<\/li>\n\n\n\n<li>Surface area: 1.66 x 0.934 = 1.55 m\u00b2<\/li>\n<\/ul>\n\n<p><strong>Example for an 86 inch display in 16:9:<\/strong><\/p>\n\n<ul class=\"wp-block-list\">\n<li>Diagonal: 86 x 2.54 = 218.4 cm<\/li>\n\n\n\n<li>Width: 218.4 x 0.8716 = 190.4 cm<\/li>\n\n\n\n<li>Height: 218.4 x 0.4903 = 107.1 cm<\/li>\n\n\n\n<li>Surface area: 1.904 x 1.071 = 2.04 m\u00b2<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"h-les-autres-formats-16-10-et-4-3\">The other aspect ratios: 16:10 and 4:3<\/h2>\n\n<p>16:10 remains common on professional monitors and on some projection screens. 4:3 survives on older projection screens and a few specific uses. At equal diagonal, these ratios give an image that is taller and narrower.&#13;\n&#13;\n<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Inches<\/th><th>16:10 width (cm)<\/th><th>16:10 height (cm)<\/th><th>4:3 width (cm)<\/th><th>4:3 height (cm)<\/th><\/tr><\/thead><tbody><tr><td>24<\/td><td>51,7<\/td><td>32,3<\/td><td>48,8<\/td><td>36,6<\/td><\/tr><tr><td>27<\/td><td>58,2<\/td><td>36,3<\/td><td>54,9<\/td><td>41,1<\/td><\/tr><tr><td>32<\/td><td>68,9<\/td><td>43,1<\/td><td>65,0<\/td><td>48,8<\/td><\/tr><tr><td>43<\/td><td>92,6<\/td><td>57,9<\/td><td>87,4<\/td><td>65,5<\/td><\/tr><tr><td>55<\/td><td>118,5<\/td><td>74,0<\/td><td>111,8<\/td><td>83,8<\/td><\/tr><tr><td>65<\/td><td>140,0<\/td><td>87,5<\/td><td>132,1<\/td><td>99,1<\/td><\/tr><tr><td>75<\/td><td>161,5<\/td><td>101,0<\/td><td>152,4<\/td><td>114,3<\/td><\/tr><tr><td>86<\/td><td>185,2<\/td><td>115,8<\/td><td>174,8<\/td><td>131,1<\/td><\/tr><tr><td>98<\/td><td>211,1<\/td><td>131,9<\/td><td>199,1<\/td><td>149,4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" id=\"h-ce-que-la-diagonale-ne-dit-pas\">What the diagonal does not tell you<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><ul>&#13;\n \t<li><strong>The actual footprint exceeds the panel.<\/strong>\u00a0The converted dimensions correspond to the image surface. The chassis, the frame and the rear connectors add a few centimetres on each side and several centimetres in depth. For a recessed or built-in installation, the datasheet of the chosen model is what counts, never the conversion chart.<\/li>&#13;\n<\/ul><\/li>\n\n\n\n<li><ul>&#13;\n \t<li><strong>Mounting height matters.<\/strong>\u00a0The same display placed at 1.00 m or at 1.40 m from the floor does not serve the same seats in the room.<\/li>&#13;\n<\/ul><\/li>\n\n\n\n<li><ul>&#13;\n \t<li><strong>Weight follows surface area.<\/strong>\u00a0Moving from a 65 to a 98 inch display multiplies the surface area by 2.3 and determines both the mount and the type of wall required.<\/li>&#13;\n<\/ul><\/li>\n\n\n\n<li><ul>&#13;\n \t<li><strong>Resolution makes nothing larger.<\/strong>\u00a0A 4K panel displays more information for the same surface area, but it will not make text more legible from a distance.<\/li>&#13;\n<\/ul><\/li>\n<\/ul>\n\n<p>These constraints are handled when choosing the mount and planning the integration, with our\u00a0<a href=\"https:\/\/hi-technologies.ch\/en\/services\/technical-furniture-screen-mounts\/\">technical furniture and screen mounts<\/a>\u00a0solutions.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-quelle-diagonale-pour-quelle-distance\">Which diagonal for which viewing distance?<\/h2>\n\n<p>Converting inches into centimetres answers a question of footprint. The next question is legibility, and it depends on the distance of the farthest viewer and on the density of the content displayed.&#13;\n&#13;\n<\/p>\n\n<p>The chart below gives orders of magnitude drawn from the\u00a0<strong>ANSI\/AVIXA V202.01<\/strong>\u00a0standard, known as DISCAS, for two types of content: titles and simple charts, then ordinary presentation material.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Inches<\/th><th>Image height (cm)<\/th><th>Titles and charts (m)<\/th><th>Ordinary presentation (m)<\/th><\/tr><\/thead><tbody><tr><td>43<\/td><td>53,5<\/td><td>3,2<\/td><td>2,1<\/td><\/tr><tr><td>50<\/td><td>62,3<\/td><td>3,7<\/td><td>2,5<\/td><\/tr><tr><td>55<\/td><td>68,5<\/td><td>4,1<\/td><td>2,7<\/td><\/tr><tr><td>65<\/td><td>80,9<\/td><td>4,9<\/td><td>3,2<\/td><\/tr><tr><td>75<\/td><td>93,4<\/td><td>5,6<\/td><td>3,7<\/td><\/tr><tr><td>86<\/td><td>107,1<\/td><td>6,4<\/td><td>4,3<\/td><\/tr><tr><td>98<\/td><td>122,0<\/td><td>7,3<\/td><td>4,9<\/td><\/tr><tr><td>110<\/td><td>137,0<\/td><td>8,2<\/td><td>5,5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p>These values are indicative. A dense dashboard, a spreadsheet or a technical drawing fall under a third category, considerably more demanding, which we set out in our article on\u00a0<a href=\"https:\/\/hi-technologies.ch\/en\/what-screen-size-for-your-meeting-room\/\">the right screen size for a meeting room<\/a>. As an\u00a0<a href=\"https:\/\/hi-technologies.ch\/en\/\">audiovisual integrator in Switzerland<\/a>, Hi Technologies is an AVIXA member and several of our staff hold the CTS certification (Certified Technology Specialist).<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-faire-dimensionner-vos-ecrans\">Having your displays sized<\/h2>\n\n<p>A conversion chart settles a question of centimetres. Choosing a diagonal depends on the geometry of the room, the content displayed, the ambient light, the mounting height and the available wall. That is the work of our\u00a0<a href=\"https:\/\/hi-technologies.ch\/en\/audiovisual-expertise\/in-house-engineering-office\/\">in-house engineering office<\/a>, which handles spaces one at a time and documents every choice.<\/p>\n\n<p>A fit-out project, a room to equip, an estate to standardize across several sites:\u00a0<a href=\"https:\/\/hi-technologies.ch\/en\/contact\/\">get in touch to discuss it<\/a>. We survey your spaces, size the displays room by room and propose a configuration for each typology.<\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key takeaways Display size is always quoted as a diagonal, in inches. Here are the full conversion charts and the calculation formulas.&#13; &#13; Screen size conversion chart in 16:9 16:9 is the reference aspect ratio for displays, professional and consumer alike. All the values below correspond to the active panel, rounded to the millimetre. Inches [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":5799,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-7221","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Screen size in inches and cm: full conversion chart<\/title>\n<meta name=\"description\" content=\"Screen size conversion chart: inches to cm, width, height and surface area in 16:9, 16:10 and 4:3, with the calculation formulas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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