Scientific Notation Converter
Convert numbers to and from scientific, engineering and standard decimal notation exactly, with optional rounding to significant figures.
Convert numbers to and from scientific, engineering and standard decimal notation exactly, with optional rounding to significant figures.
Your result will appear here
Rewrites a number in scientific notation — a coefficient between 1 and 10 times a power of ten — and in engineering notation, where the exponent is a multiple of three. It also converts back to ordinary decimal form.
The conversion works on the digits you type rather than on a floating-point value, so no digits are lost or invented.
Example
0.00042
→ 4.2 × 10^-4
Normalised scientific notation.