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Display aspect ratio
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<p>The display aspect ratio (DAR) is the <a href="/facts/Aspect_ratio_(image)/I3vbqVl3">aspect ratio</a> of a <a href="/facts/Display_device/yX1Mypk0">display device</a> and so the proportional relationship between the <a href="/facts/Display_size/AE5x1nyp">physical width and the height of the display</a>. It is expressed as two numbers separated by a colon (<i>x</i>:<i>y</i>), where <i>x</i> corresponds to the width and <i>y</i> to the height. Common aspect ratios for displays, past and present, include <a href="/facts/5:4/I3vbqVl3">5:4</a>, <a href="/facts/4:3/6CXcyd2v">4:3</a>, <a href="/facts/16:10/kkVt09pR">16:10</a>, and <a href="/facts/16:9/rS5YUsQd">16:9</a>. </p><p>To distinguish: </p> <ul><li>The display aspect ratio (DAR) is calculated from the physical width and height of a display, measured each in <a href="/facts/Inch/CocFfm8p">inch</a> or <a href="/facts/Centimetre/urPkBdGR">cm</a> (<a href="/facts/Display_size/AE5x1nyp">Display size</a>).</li> <li>The <a href="/facts/Pixel_aspect_ratio/p8j8vWIa">pixel aspect ratio (PAR)</a> is calculated from the width and height of one pixel.</li> <li>The <a href="/facts/Storage_aspect_ratio/I3vbqVl3">storage aspect ratio (SAR)</a> is calculated from the numbers of pixels in width and height stated in the <a href="/facts/Graphics_display_resolution/zyMA9HHI">display resolution</a>.</li></ul> <p>Because the units cancel out, all aspect ratios are unitless. </p>