How is it calculated?
bⁿ multiplies b by itself n times. A negative exponent means 1 divided by the power (2⁻³ = ⅛), and a fractional exponent is a root (9^0.5 = 3).
Any number to the power 0 is 1.
Exponent calculator
Enter a base and an exponent to calculate the power. Negative and decimal exponents work too.
Last updated: · By Furkan Çetinkaya · About & Methodology
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Powers table (n = 0 to 20)
Squares, cubes and the powers of 2 and 10 for whole numbers from 0 to 20.
| n | n² | n³ | 2ⁿ | 10ⁿ |
|---|---|---|---|---|
| 0 | 0 | 0 | 1 | 1 |
| 1 | 1 | 1 | 2 | 10 |
| 2 | 4 | 8 | 4 | 100 |
| 3 | 9 | 27 | 8 | 1,000 |
| 4 | 16 | 64 | 16 | 10,000 |
| 5 | 25 | 125 | 32 | 100,000 |
| 6 | 36 | 216 | 64 | 1,000,000 |
| 7 | 49 | 343 | 128 | 10,000,000 |
| 8 | 64 | 512 | 256 | 100,000,000 |
| 9 | 81 | 729 | 512 | 1,000,000,000 |
| 10 | 100 | 1,000 | 1,024 | 10,000,000,000 |
| 11 | 121 | 1,331 | 2,048 | 100,000,000,000 |
| 12 | 144 | 1,728 | 4,096 | 1,000,000,000,000 |
| 13 | 169 | 2,197 | 8,192 | 10,000,000,000,000 |
| 14 | 196 | 2,744 | 16,384 | 100,000,000,000,000 |
| 15 | 225 | 3,375 | 32,768 | 1,000,000,000,000,000 |
| 16 | 256 | 4,096 | 65,536 | 10,000,000,000,000,000 |
| 17 | 289 | 4,913 | 131,072 | 100,000,000,000,000,000 |
| 18 | 324 | 5,832 | 262,144 | 1,000,000,000,000,000,000 |
| 19 | 361 | 6,859 | 524,288 | 10,000,000,000,000,000,000 |
| 20 | 400 | 8,000 | 1,048,576 | 100,000,000,000,000,000,000 |
Common questions
What is 2 to the power of 10?
1,024.
How do I calculate a square root?
Use the exponent 0.5, or read the n-th root result with n = 2.