help me set my font DPI

[j0j081]

I have a 20 inch ws lcd and the pixel pitch is a bit hard on my eyes. I am trying to figure out how to make the font size equivalent to what is is on a 19 or 22 inch ws lcd which I am fine using.

20 inch ws 0.258 @ X DPI = 22 inch ws 0.282 @ 96DPI

Using some weird math earlier I came up with 106 DPI but it still doesn't look quite right. Any help would be greatly appreciated. Thanks!

 

[Dazed and Confused]

K, there are 25.4mm to an "inch" which is the "I" in DPI, but oddly enough the dot pitch is measured in mm : /

For the 20" LCD

25.4 / 0.258 = 98.44
25.4 x 98.44 = 2500 DPI or divide 2500 by 25.4 to find the DPI in SAE


For the 22" LCD

25.4 / 0.282 = 90.07
25.4 / 90.07 = 2287 DPI or divide 2287 by 25.4 to find the DPI in SAE


My math may be dysfunctional but I believe this is correct.

 

[nullpointerus]

Try this DPI calculator:
http://www.raydreams.com/prog/dpi.aspx

EDIT:

I'll take a stab at the math...

The DPI of a larger monitor with the same resolution will always be smaller. Obviously, the dots per inch are less when you've got the same resolution spread over a larger physical surface. So I think you find the percentage difference between the two monitors' actual DPI, add 100% to it, and multiply the smaller monitor's DPI value to get the DPI setting that will make things look as big as if they were displayed on the larger monitor.

20" 1680x1050 = 99 dpi
22" 1680x1050 = 90 dpi

difference = 10%

99 dpi * 110% = Windows DPI of 109

-or-

20" 1680x1050 = 99 dpi
19" 1280x1024 = 86 dpi

difference = 15%

99 dpi * 115% = Windows DPI of 114

 

[j0j081]

hmm maybe 106 was right after all if the difference is 10%.