This circle from circumference reference table shows the radius for a range of circumference values. Every figure is computed with the same engine that powers our Circle from Circumference Calculator, so the numbers are exact.
| Circumference | Radius | Diameter | Area |
|---|---|---|---|
| 7.9 units | 1.2573 | 2.5146 | 4.9664 |
| 16 units | 2.5465 | 5.0930 | 20.3718 |
| 24 units | 3.8197 | 7.6394 | 45.8366 |
| 31 units | 4.9338 | 9.8676 | 76.4740 |
| 47 units | 7.4803 | 14.9606 | 175.7866 |
| 63 units | 10.0268 | 20.0535 | 315.8430 |
| 94 units | 14.9606 | 29.9211 | 703.1465 |
| 160 units | 25.4648 | 50.9296 | 2,037.1833 |
| 220 units | 35.0141 | 70.0282 | 3,851.5496 |
| 310 units | 49.3380 | 98.6761 | 7,647.3950 |
How to use this table
Find the row closest to your circumference and read across to the radius. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Circle from Circumference Calculator for a precise answer.
Need a value that is not in the table? — the Circle from Circumference Calculator does it instantly, for free, with the formula and a worked example built in.
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