Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.
Square Root Calculator
Calculate square roots and nth roots of numbers.
FreeRuns in browsersquare root calculatorsqrt calculator
Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result
About Square Root Calculator
Calculate square roots and nth roots of numbers. Calculate square roots and nth roots of any positive number online for free. Shows whether the result is a perfect root and supports custom root index values. Uses precise mathematical formulas with clear, formatted results. Input validation prevents errors and guides correct usage, ensuring reliable computations every time. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.
Related tools: Exponent Calculator, Logarithm Calculator, Scientific Notation Converter
How to Use Square Root Calculator
- Fill in the required input fields with your values.
- Click Calculate to run the computation.
- View the results below the form.
Frequently Asked Questions
What is Square Root Calculator?
Calculate square roots and nth roots of any positive number online for free. Shows whether the result is a perfect root and supports custom root index values.
How are calculations performed?
Calculations use precise mathematical formulas implemented in JavaScript. The underlying formulas are well-documented and validated against known reference values to ensure correctness.
Can I use decimal values?
Yes, all input fields accept decimal numbers with full floating-point precision. You can enter values with as many decimal places as you need and the tool will compute accurate results.
Are the formulas used shown?
Where applicable, the tool displays the formula or methodology used so you can verify the computation yourself. This transparency helps you understand and trust the results.
Is Square Root Calculator free to use?
Yes, this calculator is completely free to use. No account or signup is needed, and all computations run locally in your browser without any restrictions.
Is my data safe when using Square Root Calculator?
Absolutely. Every calculation runs locally in your browser. No input data is transmitted to any server, ensuring your numbers stay private.