√225 = 15
225 is a perfect square: 15 × 15 = 225, so √225 = 15 exactly (no decimals).
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 197 | 14.0357 |
| 198 | 14.0712 |
| 199 | 14.1067 |
| 200 | 14.1421 |
| 250 | 15.8114 |
| 256 | 16 |
| 300 | 17.3205 |
| 324 | 18 |