CALCULATE WITH CONFIDENCE

Exponents, Roots & Logarithms

Cube Root Calculator

Find the real cube root of a positive or negative number.

Exponents, Roots & Logarithms

Enter values

Private calculation in your browser

Use finite decimal numbers. Calculator-specific integer and real-domain requirements are validated explicitly. Inputs stay on this device.

Result

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Enter valid values to see the result.

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Quick guide

How to use this calculator

  1. Choose a calculation mode when the page offers more than one relationship.
  2. Enter the labelled known values.
  3. Read the primary result and use the check or equivalent form to verify its meaning.

Calculation method

Apply the exponent, root, or logarithm relationship

∛x is the real number whose cube is x.

The calculator checks real-number domains, zero denominators, unsupported powers, and finite-range limits before reporting a result.

Worked example

Worked example

∛(−125) = −5.

∛x is the real number whose cube is x.

Supported inputs

Precision and limits

Real-number scope

These calculators return real results. Complex branches are handled by the separate complex-number calculators.

Numerical range

Inputs may be zero or have absolute magnitude from 1e-100 through 1e100. Exact integer radical simplification uses its narrower disclosed bound.

Precision

Numerical functions use double-precision arithmetic and normally display 12 significant digits. Symbolic labels are exact only where explicitly stated.