Exponent Calculator
Calculate powers (a^b), n-th roots, and get a scientific-notation view for very large or small results.
Power computes a^b. Root computes x^(1/n). Scientific notation expresses x as m × 10^e.
For negative base values, exponent must be an integer to keep the result real.
Privacy: calculations run locally in your browser. No inputs are stored or transmitted.
How it works
Power: a^b
Root: rootn(x) = x^(1/n)
Scientific notation: x = m × 10^e where 1 ≤ |m| < 10 (or x = 0).
Examples
- 2^10 = 1,024
- root_2(81) = 9
- root_3(27) = 3
- Scientific notation of 12345 = 1.2345 × 10^4
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
FAQ
- What does a^b mean?
a^b means multiplying a by itself b times when b is an integer. For general real b, it represents an exponentiation operation (which may be undefined for some negative bases).
- What inputs are allowed?
Base (a) and exponent (b) can be decimals. For real-number results: if a is negative, b must be an integer (otherwise the result is not a real number).
- Does this support roots?
Yes. Use the Root mode to compute the n-th root: root_n(x) = x^(1/n). For real roots, n must be nonzero; for even n, x must be >= 0.
- What is scientific notation?
Scientific notation expresses a number as m × 10^e where 1 <= |m| < 10. This tool shows a scientific-notation view for large/small results.
- Why do I see an error for negative base with decimal exponent?
Because (-a)^(non-integer) is generally not a real number. This calculator focuses on real-number outputs.