This cube calculator can easily calculate the cubed value of given number. Enter the value to be cubed, whether an integer or a decimal, and the calculator will calculate the cubed value.
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Cubing a number means multiplying the number itself by three times.
For example : 83 = 8 x 8 x 8 = 512
| Counting Numbers (a) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Cube Number (a3) | 1 | 8 | 27 | 64 | 125 | 216 | 343 | 512 |
Calculator Use
- In the first field of the above calculator, enter the number you want to cube.
- The cubed value of the entered number will be displayed in the second field.
Formula to Cube a Number
The basic formula to cube a number is very simple and is mentioned below.

How to Cube a Negative Number
The method of cubing a negative number is the same as squaring a number. A number is cubed when it is multiplied three times by itself. A positive number’s cube will always be positive, while a negative number’s cube will always be negative.
For example,
Cube of negative number : (-33) = -3 x -3 x -3 = -27
Cube of positive number : (33) = 3 x 3 x 3 = 27
Cube of 1 – 25
Below table demonstrates the cubed values of numbers 1 to 25.
| Number (a) | Cubed Value (a3) |
| Cube of 1 | 1 |
| Cube of 2 | 8 |
| Cube of 3 | 27 |
| Cube of 4 | 64 |
| Cube of 5 | 125 |
| Cube of 6 | 216 |
| Cube of 7 | 343 |
| Cube of 8 | 512 |
| Cube of 9 | 729 |
| Cube of 10 | 1000 |
| Cube of 11 | 1331 |
| Cube of 12 | 1728 |
| Cube of 13 | 2197 |
| Cube of 14 | 2744 |
| Cube of 15 | 3375 |
| Cube of 16 | 4096 |
| Cube of 17 | 4913 |
| Cube of 18 | 5832 |
| Cube of 19 | 6859 |
| Cube of 20 | 8000 |
| Cube of 21 | 9261 |
| Cube of 22 | 10648 |
| Cube of 23 | 16928 |
| Cube of 24 | 13824 |
| Cube of 25 | 15625 |