What is the square root of 20?

The square root of 20 is 4.472136. This is not a perfect square. Free instant calculation.

Is 20 a perfect square?

No, 20 is not a perfect square. Its square root is approximately 4.472136.

√20 = 4.472136

Not a perfect square. The result is an irrational number.

The square root of 20 is the number that, when multiplied by itself, equals 20.

20 is not a perfect square, so its square root is an irrational number: approximately 4.472136.

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