-3 Cubed = -27
Quick Answer
-33 = -27
Because (-3) × (-3) × (-3) = -27
Cubed Calculator
Use the calculator above to cube any real number (positive, negative, or decimal). See below the step-by-step method, the formula, and tables of common perfect cubes.
Step-by-Step: -3 Cubed
Cubing a number means multiplying it by itself three times. To compute -33:
- Multiply (-3) by itself (squaring):
(-3) × (-3) = 9 - Multiply the result by (-3) again:
9 × (-3) = -27
-33 = -27
Note: the cube of a negative number is also negative — an odd power preserves the sign.
Formula
The cube of a number n is defined as:
n3 = n × n × n
Equivalently, in exponent notation: n3 (read as "n cubed" or "n to the third power").
Geometrically, n3 represents the volume of a cube with edge length n — that's where the name comes from.
How to Cube a Number
- Write the number you want to cube.
- Square it first (multiply by itself once):
n × n = n². - Multiply the result by n one more time:
n² × n = n³. - If n is negative, parenthesize when writing each factor and remember the result is negative.
Cubed Numbers Tables
Cubed Numbers Table for Positive Numbers
| n | n3 |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 27 |
| 4 | 64 |
| 5 | 125 |
| 6 | 216 |
| 7 | 343 |
| 8 | 512 |
| 9 | 729 |
| 10 | 1000 |
| 11 | 1331 |
| 12 | 1728 |
| 13 | 2197 |
| 14 | 2744 |
| 15 | 3375 |
| 16 | 4096 |
| 17 | 4913 |
| 18 | 5832 |
| 19 | 6859 |
| 20 | 8000 |
Cubed Numbers Table for Negative Numbers
| n | n3 |
|---|---|
| -0 | 0 |
| -1 | -1 |
| -2 | -8 |
| -3 | -27 |
| -4 | -64 |
| -5 | -125 |
| -6 | -216 |
| -7 | -343 |
| -8 | -512 |
| -9 | -729 |
| -10 | -1000 |
| -11 | -1331 |
| -12 | -1728 |
| -13 | -2197 |
| -14 | -2744 |
| -15 | -3375 |
| -16 | -4096 |
| -17 | -4913 |
| -18 | -5832 |
| -19 | -6859 |
| -20 | -8000 |
Inverse Operation: Cube Root
Since -33 = -27, the cube root reverses this: ∛-27 = -3.
See our Cube Root Calculator for the decimal value.
Popular Cubed Calculations
Top n³ values from search demand + real traffic — click any to see the step-by-step:
Related Calculators
- Cube Root Calculator (∛n) — the inverse operation
- Simplify Cube Root — radical form (e.g. ∛24 = 2∛3)
- Is -3 a Perfect Cube? — check the input itself
- Geometry Calculators — volume of a cube = side³