Square Root Calculator › Square root of 648
Square Root of 648
√648 ≈ 25.455844
648 is not a perfect square, so √648 is an irrational number that is approximately 25.455844. In simplified radical form, √648 = 18√2.
√648 lies between √625 = 25 and √676 = 26.
| Number | 648 |
| Square root (decimal) | 25.455844 |
| Simplified radical | 18√2 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 648 a perfect square?
No, 648 is not a perfect square, so its square root is irrational and approximately 25.455844.
What is the square root of 648 in simplest radical form?
√648 = 18√2 in simplest radical form.