Mathematics

Square Root Calculator

Find the nonnegative number whose square is the input.

Let’s calculate.

Popularity

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THE IDEA, SIMPLY

How it works

Find the nonnegative number whose square is the input.

FORMULA

Result = √x

A worked example

√144 = 12.

Formula & detailed explanation

Only real, nonnegative inputs are supported.

Calculations use decimal arithmetic with 40 significant digits internally. Choose 0–8 decimal places for the displayed result. Trailing zeros are omitted. Rounding affects only the displayed and copied result; very small values may round to zero. Accepted inputs have up to 100 characters and magnitudes from 10⁻¹⁰⁰ to 10¹⁰⁰, plus zero.