# Cube Root Calculator

Use this cube root calculator to find the cube root, also called the 3rd root, of any positive number. Just type the number you want to find the cube root of and you can get an instant answer!

## What is a cube root?

The cube root of a number is the value that when cubed gives the original number. Since `4`

, the cube root of 64 is 4.^{3} = 64

A geometric example may help you understand the concept of the cube root. For example, if a cube has a volume of 125 cm^{3}, then the length of its edges is equal to the cube root of 125 cm_{3}, which is 5 cm.

It is possible to get the cube root of a negative number. For example, the cube root of −729 is −9.

## Cube root examples

Cube root example 1: What’s the cube root of 27?

Since `3 x 3 x 3 = 27`

, the cube root of 27 is 3.

Cube root example 2: What’s the cube root of 1728?

Since `12 x 12 x 12 = 1728`

, the cube root of 1728 is 12.

## What is a perfect cube?

A perfect cube is a number that is the cube of an integer. For example, 216 is a perfect cube since 216 = 6 * 6 * 6. The most common perfect cubes and cube roots are listed below. Cube root of 1: `∛1 = 1`

- Cube root of 8:
`∛8 = 2`

- Cube root of 27:
`∛27 = 3`

- Cube root of 64:
`∛64 = 4`

- Cube root of 125:
`∛125 = 5`

- Cube root of 216:
`∛216 = 6`

- Cube root of 343:
`∛343 = 7`

- Cube root of 512:
`∛512 = 8`

- Cube root of 729:
`∛729 = 9`

- Cube root of 1000:
`∛1000 = 10`

## How to use the cube root calculator?

You can use our free cube root calculator to find the cube root of any number. Type in your number and the answer will be displayed immediately.