Scientific Notation Converter
Switch between decimal numbers and scientific notation in seconds. Enter a value to get the mantissa and exponent, or convert a mantissa and exponent back to decimal form.
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What is scientific notation?
Scientific notation writes a number as m x 10^e, where the mantissa m is between 1 and 10 in absolute value and e is an integer exponent.
It is commonly used for very large or very small values in science, engineering, and data work because it keeps numbers readable and comparable.
Engineering notation uses exponents in multiples of three, matching metric prefixes like kilo, mega, and giga.
This converter formats results with your precision setting and reports order of magnitude for quick comparisons.