Scientific Notation Converter
Convert between standard decimal numbers and scientific notation - handles very large and very small values without precision loss.
Enter a number in either standard or scientific notation - this tool converts it to the other form, showing the coefficient and exponent.
Edit either field - the other updates. Enter scientific notation as coefficient followed by e or x10^ and the exponent (e.g. 6.371e6 or 6.371x10^6). Very large or very small numbers are limited by JavaScript's native floating-point precision (about 15-17 significant digits) - beyond that, additional digits cannot be represented exactly.
Very large or very small numbers are handled using string-based digit manipulation rather than JavaScript's native number formatting, to avoid precision loss or unwanted rounding.
What Is Scientific Notation?
Scientific notation expresses a number as a coefficient (between 1 and 10) multiplied by 10 raised to a power - useful for writing very large numbers (like 6.022 × 10^23) or very small ones (like 1.6 × 10^-19) compactly.
How to Use It
- Enter a number in standard decimal form, or in scientific notation (e.g.
1.5e10). - View the converted result in the other form, with the coefficient and exponent shown separately.
Precision Notes
This preserves the significant digits you enter rather than silently rounding - if you enter more precision than is meaningful for your use case, that precision is carried through rather than truncated.