Scientific Notation Converter
Enter a number in any form to see its scientific, engineering, E-notation and decimal equivalents.
How to use it
- Enter a number Plain, E-notation or × 10^ form all work.
- Read every form Scientific, engineering, E-notation and decimal.
- Copy what you need Use whichever notation your work requires.
Examples
| 1234.5 | 1.2345 × 10³ |
|---|---|
| 0.0012 | 1.2 × 10⁻³ |
About this tool
Scientific notation keeps very large and very small numbers readable by splitting them into a coefficient and a power of ten. This converter takes a number in any common form and shows the scientific, engineering and E-notation versions side by side, along with the plain decimal.
Engineering notation is especially useful in electronics and physics because its exponents are multiples of three, matching prefixes like kilo, milli and micro. The conversion happens entirely in your browser.
Frequently asked questions
What's the difference between scientific and engineering notation?
Scientific notation keeps one non-zero digit before the point; engineering notation uses exponents that are multiples of three, lining up with units like kilo and milli.
Can it read 1.2e3 and 1.2 × 10^3?
Yes. It accepts plain numbers, E-notation and "× 10^" style input, and converts between them all.
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Updated June 13, 2026