Since I deal a lot with designing artwork in US measurements (fractions) using Illustrator and Photoshop, more often than not I have to break out a calculator to determine the decimal value of a fractional measurement.
Lets say I need to create a document that is 4 inches wide by 3 7/16 inches high. Obviously 4 inches needs no conversion, but then you have the 3 7/16 inches measurement. First you take 1, divide it by 16, then multiply the result by 7… what a pain.
So I have thrown together a quick reference guide that start at 1/64 and goes up to 63/64 with each variation in between. Bookmark or print this page to save a copy for your own personal reference. The most common fractions for my purposes are outlined in bold.
1/64 | 0.01563 | 17/64 | 0.26563 | 33/64 | 0.51563 | 49/64 | 0.76563 |
1/32 | 0.03125 | 9/32 | 0.28125 | 17/32 | 0.53125 | 25/32 | 0.78125 |
3/64 | 0.04688 | 19/64 | 0.29688 | 35/64 | 0.54688 | 51/64 | 0.79688 |
1/16 | 0.0625 | 5/16 | 0.3125 | 9/16 | 0.5625 | 13/16 | 0.8125 |
5/64 | 0.07813 | 21/64 | 0.32813 | 37/64 | 0.57813 | 53/64 | 0.82813 |
3/32 | 0.09375 | 11/32 | 0.34375 | 19/32 | 0.59375 | 27/32 | 0.84375 |
7/64 | 0.10938 | 23/64 | 0.35938 | 39/64 | 0.60938 | 55/64 | 0.85938 |
1/8 | 0.125 | 3/8 | 0.375 | 5/8 | 0.625 | 7/8 | 0.875 |
9/64 | 0.14063 | 25/64 | 0.39063 | 41/64 | 0.64063 | 57/64 | 0.89063 |
5/32 | 0.15625 | 13/32 | 0.40625 | 21/32 | 0.65625 | 29/32 | 0.90625 |
11/64 | 0.17188 | 27/64 | 0.42188 | 43/64 | 0.67188 | 59/64 | 0.92188 |
3/16 | 0.1875 | 7/16 | 0.4375 | 11/16 | 0.6875 | 15/16 | 0.9375 |
13/64 | 0.20313 | 29/64 | 0.45313 | 45/64 | 0.70313 | 61/64 | 0.95313 |
7/32 | 0.21875 | 15/32 | 0.46875 | 23/32 | 0.71875 | 31/32 | 0.96875 |
15/64 | 0.23438 | 31/64 | 0.48438 | 47/64 | 0.73438 | 63/64 | 0.98438 |
1/4 | 0.25 | 1/2 | 0.5 | 3/4 | 0.75 |
I use an online converter because it saves me time. I found a good one on http://decimal2fraction.com