Square Root Calculator › Square root of 816
Square Root of 816
√816 ≈ 28.565714
816 is not a perfect square, so √816 is an irrational number that is approximately 28.565714. In simplified radical form, √816 = 4√51.
√816 lies between √784 = 28 and √841 = 29.
| Number | 816 |
| Square root (decimal) | 28.565714 |
| Simplified radical | 4√51 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 816 a perfect square?
No, 816 is not a perfect square, so its square root is irrational and approximately 28.565714.
What is the square root of 816 in simplest radical form?
√816 = 4√51 in simplest radical form.