√162 ≈ 12.7279
√162 is an irrational number, so its decimals never end or repeat. It sits between 12 and 13 because 12² = 144 and 13² = 169.
| Decimal places | Value |
|---|---|
| 0 | 13 |
| 1 | 12.7 |
| 2 | 12.73 |
| 3 | 12.728 |
| 4 | 12.7279 |
| 5 | 12.72792 |
| 10 (digits) | 12.7279220614 |
162 = 81 × 2 and √81 = 9, so √162 = 9√2.
12.7279 × 12.7279 ≈ 161.9994, which is very close to 162.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 158 | 12.5698 |
| 159 | 12.6095 |
| 160 | 12.6491 |
| 161 | 12.6886 |
| 163 | 12.7671 |
| 164 | 12.8062 |
| 165 | 12.8452 |
| 166 | 12.8841 |