calculated mm length on display sizes indicated of
100 pixels
ResolutionType21"19"17"15"14"12"
640 x 480VGA 46.4 41.736.932.129.825.0
800 x 600SVGA 37.133.329.525.723.820.0
1024 x 768XGA 29.026.023.120.118.615.6
1280 x 1024SXGA 21.819.517.315.114.011.7
1400 x 1050SXGA+ 21.219.116.914.713.611.4
1600 x 1200UXGA 18.616.714.812.911.910.0
1800 x 1350UXGA+ 16.514.813.111.410.68.89
measured mm height on display sizes indicated of
100 pixel "1" (rounded to closest .5 mm)
ResolutionType21"19"17"15"14"12"
640 x 480VGA   40.036.0 30.5 
800 x 600SVGA  31.528.5 24.0 
1024 x 768XGA  25.022.5 20.0 
1280 x 1024SXGA  18.516.0   
1400 x 1050SXGA+ 0.000.000.00
1600 x 1200UXGA  16.0    
1800 x 1350UXGA+  14.0    
The font size testcase used for the measurements
calculated mm height on display sizes indicated of
11 pixels @ 96 DPI logical resolution
ResolutionType21"19"17"15"14"12"
640 x 480VGA 5.114.584.063.543.272.75
800 x 600SVGA 4.093.673.252.832.622.20
1024 x 768XGA 3.192.862.542.212.051.72
1280 x 1024SXGA 2.392.151.901.661.531.29
1400 x 1050SXGA+ 2.332.101.861.621.501.26
1600 x 1200UXGA 2.041.831.621.411.311.10
1800 x 1350UXGA+ 1.821.631.441.261.16.980
calculated mm height on display sizes indicated of
16 pixels @ 96 DPI logical resolution
ResolutionType21"19"17"15"14"12"
640 x 480VGA 7.436.675.915.144.764.00
800 x 600SVGA 5.945.334.724.113.813.20
1024 x 768XGA 4.644.173.693.212.982.50
1280 x 1024SXGA 3.483.132.772.412.231.88
1400 x 1050SXGA+ 3.403.052.702.352.181.83
1600 x 1200UXGA 2.972.672.362.061.911.60
1800 x 1350UXGA+ 2.642.372.101.831.691.42
Ratio of average reading distance to text size:
11 pixels @ 96 DPI logical resolution
ResolutionType21"19"17"15"14"12"
640 x 480VGA 122136154177191227
800 x 600SVGA 153170192221239284
1024 x 768XGA 196218246283305364
1280 x 1024SXGA 261291328377407485
1400 x 1050SXGA+ 268298337387418497
1600 x 1200UXGA 306341385442477568
1800 x 1350UXGA+ 344383433497537639
Ratio of average reading distance to text size:
16 pixels @ 96 DPI logical resolution
ResolutionType21"19"17"15"14"12"
640 x 480VGA 84.193.7106122131156
800 x 600SVGA 105117132152164195
1024 x 768XGA 135150169194210250
1280 x 1024SXGA 179200226259280333
1400 x 1050SXGA+ 184205232266287342
1600 x 1200UXGA 210234265304328391
1800 x 1350UXGA+ 237264298342369439

Calculated mm height on display sizes indicated of other pixel values
Compare pixels sizes at your screen resolution to other resolutions, without changing yours.
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2006.03.25
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