Root Calculator (Square, Cube & Nth Root)
Math ToolsSquare root, cube root and any root with simplified form
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All history →Root Calculator (Square, Cube & Nth Root) — at a glance
Take any root of a number and see it in simplest form.
72
root 2
Calculate Root
√72 = 6√2 ≈ 8.485
How to use it — step by step
The number and the root degree.
1
Enter your values
Fill in the fields. Default numbers are shown so you can see how it works.
2
Press Calculate Root
The answer appears at once as large result cards.
3
Copy or share
Copy the result, or share a link that opens with your numbers filled in.
Pro tips
Small things that make the result better.
✦Odd roots of negative numbers work, even roots do not.
✦Perfect squares have whole-number roots.
✦Degree 2 is a square root, 3 a cube root.
Quick facts
Freeno signup
Privateruns in your browser
Instantresult in a second
No limituse it as often as you like
Frequently Asked Questions
What is a simplified radical?+
Pulling out the largest square factor, so √72 becomes 6√2.
Can I take the root of a negative?+
Only odd roots, like the cube root of -8, which is -2.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.
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