Pixles are used in all measurements when building a web page such as the border of a table is set in pixles.
Although you can't really tell what the dimensions in inches are of a graphic, you can usually judge it pretty well. If you have scanned a photograph, you will, of course, know the dimensions in inches.
Also remember that the size of the viewing screen will alter the size of the graphic somewhat. On my 27 inch TV, graphics look different than when I have the WebTv hooked up to my 12 inch TV.
72 pixels equals 1 inch.
You would multiply the inches or fraction of an inch by 72.
Here is a simple conversion chart for fractions of inches.
1/8" = .125 X 72 = 9 pixles
1/4" = .25 X 72 = 18 pixles
3/8" = .375 X 72 = 27 pixles
1/2" = .50 X 72 = 36 pixles
That would make
1 3/8" = 1.375 X 72 = 99 pixles
 | | | |
| 1/2"H X 3/8"W = 36H X 27W | 1"H X 3/4"W = 72H x 54W | 2"H X 1 3/8"W = 144H X 99W | 3"W X 2 1/8"H = 216H X 153W |
4"H X 2 7/8"W =
288H X 207W
So, the image tag for the bottom graphic would look like this:
