It is a way to write numbers as a × 10ⁿ, where the coefficient a is between 1 and 10 (in absolute value) and n is an integer (positive, negative or zero).
Scientific Notation Converter
Convert between decimal and scientific notation (a × 10ⁿ) in both directions.
Bidirectional conversion between decimal and scientific notation.
Scientific notation represents numbers as a × 10ⁿ, where 1 ≤ |a| < 10 and n is an integer. It is used in science, engineering and mathematics to represent very large numbers (like 6.022 × 10²³) or very small ones (like 1.6 × 10⁻¹⁹). This tool accepts any format and converts in both directions.
Enter a number in any format.
- Enter the number as decimal (32000), e-notation (3.2e4) or a×10^b notation.
- Conversion is automatic and instant.
- See scientific notation, decimal form, coefficient and exponent.
Sources and references for this tool
These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.
- Scientific Notation — Khan AcademyKhan Academy — Scientific notation review with conversion exercises.
- Scientific Notation — Wolfram MathWorldWolfram MathWorld — Formal definition and rules of scientific notation.
- IEEE 754 Float64 — WikipediaWikipedia — Double-precision floating-point format used internally.