This circle reference table shows the area for a range of radius values. Every figure is computed with the same engine that powers our Circle Calculator, so the numbers are exact.
| Radius | Area | Circumference | Diameter |
|---|---|---|---|
| 1.8 units | 10.1788 | 11.3097 | 3.6000 |
| 3.5 units | 38.4845 | 21.9911 | 7.0000 |
| 5.3 units | 88.2473 | 33.3009 | 10.6000 |
| 7 units | 153.9380 | 43.9823 | 14.0000 |
| 11 units | 380.1327 | 69.1150 | 22.0000 |
| 14 units | 615.7522 | 87.9646 | 28.0000 |
| 21 units | 1,385.4424 | 131.9469 | 42.0000 |
| 35 units | 3,848.4510 | 219.9115 | 70.0000 |
| 49 units | 7,542.9640 | 307.8761 | 98.0000 |
| 70 units | 15,393.8040 | 439.8230 | 140.0000 |
How to use this table
Find the row closest to your radius and read across to the area. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Circle Calculator for a precise answer.
Need a value that is not in the table? — the Circle Calculator does it instantly, for free, with the formula and a worked example built in.
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