About the Square Root Calculator
Find the square root, cube root and square of a number. This tool is free, works in your browser and needs no sign-up.
How to use the Square Root Calculator
Enter a number.
Formula used
Square root = √n. Cube root = ∛n. Square = n × n.
Example
With Number 144, the calculator shows: Square root = 12; Cube root = 5.241483; Square = 20,736.
Frequently asked questions
Is the Square Root Calculator free to use?
Yes. It is completely free and you can use it as many times as you like.
How accurate is the Square Root Calculator?
The calculator uses standard formulas, so the maths is exact. Real life results can differ because of fees, taxes, rounding or personal factors, so treat the answer as an estimate.
Do you store the numbers I enter?
No. All calculations run in your browser. The values you type are not sent to our server.
Disclaimer: results are estimates for information only. They are not financial, medical or professional advice.