Scientific notation calculator

Published On: 25/02/2026

Scientific Notation Calculator

Convert numbers between standard form and scientific notation, and optionally perform basic operations (multiply/divide) in scientific notation.
Inputs explained:
Standard number: a normal number like 1250000 or 0.00042.
Scientific notation: written as a × 10^n where 1 ≤ |a| < 10.
Example: 1,250,000 = 1.25 × 10^6 and 0.00042 = 4.2 × 10^-4.
You can enter commas; they will be ignored.
Tip: Scientific notation is helpful for very large or very small numbers and is commonly used in science, engineering, and chemistry.

Scientific Notation Calculator — Description

The Scientific Notation Calculator converts numbers between standard form and scientific notation. Scientific notation expresses values as a × 10^n, where the coefficient a is between 1 and 10 (in absolute value). This tool is helpful for working with very large or very small numbers in math, physics, chemistry, and engineering, and it can also perform simple multiplication or division in scientific notation.

Enter a number in standard form to convert it, or switch to the multiply/divide mode to calculate results using scientific notation.