Circle Area Calculator
A = πr²
| Radius | Area | Circumference |
|---|---|---|
| 1 | 3.14 | 6.28 |
| 2 | 12.57 | 12.57 |
| 3 | 28.27 | 18.85 |
| 4 | 50.27 | 25.13 |
| 5 | 78.54 | 31.42 |
| 6 | 113.1 | 37.7 |
| 7 | 153.94 | 43.98 |
| 8 | 201.06 | 50.27 |
| 9 | 254.47 | 56.55 |
| 10 | 314.16 | 62.83 |
| 11 | 380.13 | 69.12 |
| 12 | 452.39 | 75.4 |
| 13 | 530.93 | 81.68 |
| 14 | 615.75 | 87.96 |
| 15 | 706.86 | 94.25 |
| 16 | 804.25 | 100.53 |
| 17 | 907.92 | 106.81 |
| 18 | 1,017.88 | 113.1 |
| 19 | 1,134.11 | 119.38 |
| 20 | 1,256.64 | 125.66 |
| 21 | 1,385.44 | 131.95 |
| 22 | 1,520.53 | 138.23 |
| 23 | 1,661.9 | 144.51 |
| 24 | 1,809.56 | 150.8 |
| 25 | 1,963.5 | 157.08 |
| 26 | 2,123.72 | 163.36 |
| 27 | 2,290.22 | 169.65 |
| 28 | 2,463.01 | 175.93 |
| 29 | 2,642.08 | 182.21 |
| 30 | 2,827.43 | 188.5 |
| 31 | 3,019.07 | 194.78 |
| 32 | 3,216.99 | 201.06 |
| 33 | 3,421.19 | 207.35 |
| 34 | 3,631.68 | 213.63 |
| 35 | 3,848.45 | 219.91 |
| 36 | 4,071.5 | 226.19 |
| 37 | 4,300.84 | 232.48 |
| 38 | 4,536.46 | 238.76 |
| 39 | 4,778.36 | 245.04 |
| 40 | 5,026.55 | 251.33 |