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Root calculator
Square, cube and nth roots, simplified to the form a√b.
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- No sign-up
- Works on any device
About Root calculator
Compute square, cube and nth roots, and simplify radicals to the form a times the root of b. For example the square root of 72 becomes 6 root 2, since 72 = 36 x 2. Useful for algebra homework where an exact answer is wanted instead of a decimal.
How to use Root calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
How do I simplify the square root of 50?
Pull out the largest perfect square factor: 50 = 25 x 2, so sqrt(50) = 5 sqrt(2), which is about 7.071 as a decimal.
Is Root calculator free?
Yes. Root calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.