Exponent Calculator
Exponent calculator
Evaluate powers or nth roots with exact-form hints for negative integer exponents.
InputsForm3 fieldsLive
Result
0.125
Using value = base^exponent. Exact form: 1 / (2^3).
Live update
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math
Formula
y = b^n Symbol legend
| Symbol | Meaning | Unit | Copy |
|---|---|---|---|
y | Computed output value | number | |
b | Base value | number | |
n | Exponent value | number |
- Exponentiation multiplies the base by itself n times for integer n.
- Negative exponents invert the powered value.
- Fractional exponents correspond to roots where defined.
Example
Worked example: 2^8
- 1 Base b = 2
- 2 Exponent n = 8
- 3 y = 2^8 = 256
2 raised to the power of 8 equals 256.
How
- Enter the base value.
- Enter the exponent value.
- Read the live powered result and copy if needed.
Avoid
- Confusing b^n with b x n.
- Expecting real output for negative bases with non-integer fractional exponents.
- Ignoring order of operations in mixed expressions.
FAQ
Can I use negative exponents?
Yes. Negative exponents are supported and produce reciprocal results.
Does this support decimal exponents?
Yes, decimal exponents are supported when the real-number result is defined.
Why do some inputs show errors?
Some exponent combinations produce undefined or non-finite real results in JavaScript.
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