Square Root Calculator — Instant Results
Find square roots and simplified radical forms
How to Use Square Root Calculator
Find square roots and simplified radical forms No signup, and nothing gets uploaded for most use.
- 1
Enter your numbers in the input fields.
- 2
Choose the calculation options or frequency.
- 3
The result updates instantly as you type.
- 4
Review the breakdown, chart, or schedule, and copy the answer.
Why you might like it
- Nothing to upload — the work happens on your device.
- Free with no signup, no watermarks, and no daily limits.
- Works in any modern browser on any device — nothing to install.
- Usually done in a few seconds, so it doesn't get in your way.
Frequently Asked Questions
How do you simplify a radical?▾
Factor the number into primes, then move each prime with an even exponent outside the radical in pairs. For example, 50 = 2 × 5², so √50 = 5√2.
What is the square root of a negative number?▾
Real numbers have no real square root of a negative value. In the complex number system the result is an imaginary number, i√|n| (for example √−4 = 2i).
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