Square Root Calculator › Square root of 28
Square Root of 28
√28 ≈ 5.291503
28 is not a perfect square, so √28 is an irrational number that is approximately 5.291503. In simplified radical form, √28 = 2√7.
√28 lies between √25 = 5 and √36 = 6.
| Number | 28 |
| Square root (decimal) | 5.291503 |
| Simplified radical | 2√7 |
| Perfect square? | No |
| Rational? | No |
Calculate another square root
Nearby square roots
Frequently asked questions
Is 28 a perfect square?
No, 28 is not a perfect square, so its square root is irrational and approximately 5.291503.
What is the square root of 28 in simplest radical form?
√28 = 2√7 in simplest radical form.