Scientific Notation Converter

Convert between standard and scientific notation. Free online scientific notation calculator.

The Scientific Notation Converter transforms numbers between standard decimal form and scientific notation (a × 10ⁿ). This format is essential for working with very large or very small numbers in science, engineering, and mathematics. Enter any number to see it in scientific notation, or input scientific notation to get the decimal equivalent.

Common use cases

  • Physics calculations with atomic scales
  • Astronomy distances and masses
  • Chemistry molar quantities
  • Engineering tolerance specifications
  • Computer memory sizes

How to use

  1. Enter a number in standard or scientific form
  2. Click convert for the other format
  3. View the coefficient and exponent
  4. See the full decimal expansion
  5. Copy either format for use

FAQ

What is scientific notation?

A number written as a × 10ⁿ where 1 ≤ |a| < 10 and n is an integer. Example: 6,500,000 = 6.5 × 10⁶.

How do I convert to scientific notation?

Move the decimal point until you have a number between 1 and 10. Count moves for the exponent (right = negative).

What does E notation mean?

E notation like 6.5E6 means 6.5 × 10⁶. Common in calculators and programming.

How do I multiply numbers in scientific notation?

Multiply coefficients, add exponents: (3 × 10⁴) × (2 × 10³) = 6 × 10⁷.