Square Root Calculator

Calculate square roots, cube roots, and nth roots with radical simplification and configurable decimal precision.

√(?) = —

Radicand (number)

Root Degree

Enter a valid integer degree (2 or greater).

Decimal Precision6

215

Root Formulas

√x = x^(1/2) — square root

∛x = x^(1/3) — cube root

√[n](x) = x^(1/n) — nth root

Simplification: Factor out the largest perfect nth power. For example, √72 = √(36 × 2) = 6√2.

1

Enter a number

Type the number you want to find the root of.
2

Choose the root degree

Select square root (2), cube root (3), or enter a custom root degree.
3

Read the result

See the decimal result and simplified radical form instantly.

What is radical simplification?

It expresses the root in its simplest form. For example, sqrt(72) = 6sqrt(2) because 72 = 36 x 2 and sqrt(36) = 6.

Can I calculate cube roots and higher?

Yes. Change the root degree to 3 for cube root, or any positive integer for nth root.

What happens with negative numbers?

Odd roots of negative numbers work normally (e.g. cbrt(-8) = -2). Even roots of negative numbers show a complex number hint.

Is my data sent anywhere?

No. All calculations run in your browser.

Find the square root, cube root, or any nth root of a number. See the

simplified radical form (e.g. sqrt(72) = 6sqrt(2)) alongside the decimal

result with configurable precision from 2 to 15 decimal places. Detects

perfect squares and cubes. Handles negative inputs with a complex

number hint for even roots. All processing runs in your browser.

A full-featured scientific calculator with trigonometry, logarithms, exponents, memory, and calculation history.

Solve ax2 + bx + c = 0 with real or complex roots, step-by-step solution, vertex, and parabola graph.