About the exponent & root calculator
Exponents describe repeated multiplication, and roots undo them. This calculator handles negative exponents (reciprocals), fractional exponents (roots), and very large results in scientific notation.
How to use this calculator
- Choose power or root.
- Enter x and n.
- Read the result and check.
Worked examples
- 2¹⁰ = 1,024
- ³√27 = 3
1,024 and 3.
Measurement guidance
Scientific notation
Very large or small results are shown as a × 10ᵇ, for example 1.5 × 10⁹.
Frequently asked questions
What is x⁰?
Any non-zero number to the power of zero is 1.
Can I take the cube root of a negative?
Yes. Odd roots of negative numbers are negative.