Scientific Notation Converter
Convert any number to and from scientific notation.
Results update as you type.
About this calculator
Scientific notation writes a number as a coefficient between 1 and 10 times a power of ten, which makes very large and very small numbers easy to read. This converter turns a plain number into scientific notation and E-notation, and it also accepts scientific input (like 1.2e5) to convert back to a standard number.
Frequently asked questions
How do you write a number in scientific notation?
Move the decimal point so one non-zero digit sits in front of it, then multiply by 10 to the number of places moved. 12,345 = 1.2345 × 10⁴.
What is E-notation?
E-notation is how calculators display scientific notation: 1.2345 × 10⁴ is shown as 1.2345e+4, where the number after e is the power of ten.
Results are estimates for general guidance only, not financial, medical or tax advice.