Square Root Calculator

Find the square root of a number, check whether it is a perfect square and see the simplified radical form.

What is the Square Root Calculator?

The square root of x is the number that, multiplied by itself, gives x.

How does it work?

The calculator computes the decimal root and factors out perfect squares to simplify the radical.

Formula

√x × √x = x
√(a²b) = a√b

Example

√72 = √(36 × 2) = 6√2 ≈ 8.4853.

Frequently asked questions

Can I find the square root of a negative number?

Not as a real number. Negative numbers have imaginary square roots, such as √−1 = i.

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