√54 ≈ 7.3485
√54 is an irrational number, so its decimals never end or repeat. It sits between 7 and 8 because 7² = 49 and 8² = 64.
| Decimal places | Value |
|---|---|
| 0 | 7 |
| 1 | 7.3 |
| 2 | 7.35 |
| 3 | 7.348 |
| 4 | 7.3485 |
| 5 | 7.34847 |
| 10 (digits) | 7.3484692283 |
54 = 9 × 6 and √9 = 3, so √54 = 3√6.
7.3485 × 7.3485 ≈ 54.0005, which is very close to 54.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 50 | 7.0711 |
| 51 | 7.1414 |
| 52 | 7.2111 |
| 53 | 7.2801 |
| 55 | 7.4162 |
| 56 | 7.4833 |
| 57 | 7.5498 |
| 58 | 7.6158 |