| Diameter, inches | Circumference, inches | Area, sq. inches |
| 1/8 | 0.40 | 0.01 |
| 1/4 | 0.79 | 0.05 |
| 3/8 | 1.18 | 0.11 |
| 1/2 | 1.57 | 0.11 |
| 3/4 | 2.36 | 0.44 |
| 1 | 3.14 | 0.79 |
| 1 1/4 | 3.93 | 1.23 |
| 1 1/2 | 4.71 | 1.77 |
| 2 | 6.28 | 3.14 |
| 2 1/2 | 7.85 | 4.91 |
| 3 | 9.43 | 7.07 |
| 4 | 12.55 | 12.57 |
| 5 | 15.71 | 19.64 |
| 6 | 18.85 | 28.27 |