Square Root Calculator: The Complete Guide
Find the square root of any number. Enter a value to get its square root, plus the cube root and the square of the number for quick reference.
Who the Square Root Calculator is for
Students and anyone needing a quick, accurate square root and related values.
How to use the Square Root Calculator
- Type your values into the fields above — pick your currency or units where the calculator offers them.
- Results update automatically as you type; there's no submit button and nothing is sent to a server.
- Adjust any input to compare scenarios, then copy the result with a single click.
How it works
The square root of x is the value that, multiplied by itself, gives x (√x). The calculator also shows the cube root (∛x) and the square (x²).
Features
- Square root
- Cube root too
- Square of the number
- Instant result
About square roots
The square root of a number is the value that squares to it: √16 = 4 because 4 × 4 = 16. Most square roots are irrational decimals, so the calculator gives a precise approximation. Square roots are everywhere in geometry, statistics, and physics.