Can this Root Calculator handle negative numbers?

Yes! Odd roots (like cube root) of negative numbers work perfectly. Even roots of negatives show a clear error message.

How accurate are the results?

Up to 12 decimal places using native JavaScript high-precision math — more accurate than most physical scientific calculators.

Absolutely! Just select 'Custom nth Root' and enter any number ≥ 2 — even 10000th root works instantly.

100% safe. Everything runs locally in your browser — no server, no cookies, no tracking.

Fully responsive and touch-friendly on Android, iPhone, iPad and tablets.

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Root Calculator - Instant Square Root, Cube Root & nth Root Online [Free Tool]

Calculate Square Root • Cube Root • Any nth Root Instantly

Enter Number

Root Type

Enter n for nth Root

Result will appear here