Scientific Notation Converter

Convert ordinary numbers to scientific notation (mantissa × 10^n) and back.

Why use this tool?

Turn very large or very small numbers into scientific notation (like 6.371 × 10⁶) and back, as used in science, engineering and calculators.

How to use it

1. Choose the direction: decimal to scientific, or scientific to decimal.
2. Enter the number (or the mantissa and exponent).
3. Read the converted form.