Square Root Calculator
Find the square root of any positive number. Shows exact result and decimal approximation.
√=
Square Root Formula
√x = x0.5
√144 = 12 (because 12 × 12 = 144)
Perfect Squares Reference
| Number | Square Root |
|---|---|
| 1 | 1 |
| 4 | 2 |
| 9 | 3 |
| 16 | 4 |
| 25 | 5 |
| 36 | 6 |
| 49 | 7 |
| 64 | 8 |
| 81 | 9 |
| 100 | 10 |
| 121 | 11 |
| 144 | 12 |
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Last updated: 2026-08-08