√76 ≈ 8.7178
√76 is an irrational number, so its decimals never end or repeat. It sits between 8 and 9 because 8² = 64 and 9² = 81.
| Decimal places | Value |
|---|---|
| 0 | 9 |
| 1 | 8.7 |
| 2 | 8.72 |
| 3 | 8.718 |
| 4 | 8.7178 |
| 5 | 8.71780 |
| 10 (digits) | 8.7177978871 |
76 = 4 × 19 and √4 = 2, so √76 = 2√19.
8.7178 × 8.7178 ≈ 76.0000, which is very close to 76.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 72 | 8.4853 |
| 73 | 8.5440 |
| 74 | 8.6023 |
| 75 | 8.6603 |
| 77 | 8.7750 |
| 78 | 8.8318 |
| 79 | 8.8882 |
| 80 | 8.9443 |