If you manually measure your targets (for text data entry) in fraction
of an inch, you will need to convert the fractions to decimals. The
following table may be helpful.
| 1/16 | 0.062 | 9/16 | 0.562 | |
| 1/8 | 0.125 | 5/8 | 0.625 | |
| 3/16 | 0.188 | 11/16 | 0.688 | |
| 1/4 | 0.250 | 3/4 | 0.750 | |
| 5/16 | 0.312 | 13/16 | 0.812 | |
| 3/8 | 0.375 | 7/8 | 0.875 | |
| 7/16 | 0.438 | 15/16 | 0.938 | |
| 1/2 | 0.500 | 1 | 1.000 |