Math & Calculators•Free & Browser-Based
Square Root Calculator
Calculate square roots, cube roots, and custom Nth roots with radical simplification and perfect square checks.
Result
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What is the Free Online Square Root Calculator?
The square root of a number $x$ is a value $r$ such that $r^2 = x$. The Nth root is a value that, multiplied by itself $n$ times, equals the radicand.
100% Client-Side Privacy: Calculations and data processing occur entirely in your local browser memory. Zero files or personal inputs are uploaded to our servers.
How to Use Square Root Calculator Online: Step-by-Step Guide
- 1Enter the number (radicand).
- 2Choose root degree (default is 2 for square root, or enter 3 for cube root).
- 3Get the exact root value, simplified radical, and perfect root confirmation.
Real-World Calculation Example
$\sqrt{144} = 12$, $\sqrt[3]{125} = 5$
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