√22 ≈ 4.6904
√22 is an irrational number, so its decimals never end or repeat. It sits between 4 and 5 because 4² = 16 and 5² = 25.
| Decimal places | Value |
|---|---|
| 0 | 5 |
| 1 | 4.7 |
| 2 | 4.69 |
| 3 | 4.690 |
| 4 | 4.6904 |
| 5 | 4.69042 |
| 10 (digits) | 4.6904157598 |
22 has no perfect-square factor other than 1, so √22 is already in simplest radical form.
4.6904 × 4.6904 ≈ 21.9999, which is very close to 22.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 18 | 4.2426 |
| 19 | 4.3589 |
| 20 | 4.4721 |
| 21 | 4.5826 |
| 23 | 4.7958 |
| 24 | 4.8990 |
| 25 | 5 |
| 26 | 5.0990 |