Square Root & Power Calculator
Square root, cube root, any nth root and powers — with a perfect square check and simplest radical form.
Result
How to use
- 1
Type the number.
- 2
Optionally change n to get the nth root and the power xⁿ.
- 3
See the square root, cube root, powers and whether the number is a perfect square or cube.
Questions
What is a perfect square?
A whole number that is the square of another whole number — like 1, 4, 9, 16, 25 or 144 (12 × 12).
What is the simplest radical form?
Writing a square root with the largest perfect square taken out. For example √72 = √(36 × 2) = 6√2.
Can I find the square root of a negative number?
Not among real numbers. The result is imaginary: √−16 = 4i. Cube roots of negative numbers are real, e.g. ∛−27 = −3.
About this Square Root tool
Square Root & Power Calculator — Square root, cube root, any nth root and powers — with a perfect square check and simplest radical form. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Type the number.
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Results are estimates to help you plan. They are not financial, tax or medical advice.