Square Root Calculator › Square root of 27
Square Root of 27
√27 ≈ 5.196152
27 is not a perfect square, so √27 is an irrational number that is approximately 5.196152. In simplified radical form, √27 = 3√3.
√27 lies between √25 = 5 and √36 = 6.
| Number | 27 |
| Square root (decimal) | 5.196152 |
| Simplified radical | 3√3 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 27 a perfect square?
No, 27 is not a perfect square, so its square root is irrational and approximately 5.196152.
What is the square root of 27 in simplest radical form?
√27 = 3√3 in simplest radical form.