Scientific Notation Calculator

Add, subtract, multiply, and divide numbers in scientific notation, get results in scientific, E, and decimal notation in one click.

INPUT
×10
×10
RESULTS

How to Use This Calculator

  1. Enter the coefficient and exponent for your first number (e.g., 3.2 × 10⁴)
  2. Select your operation — add, subtract, multiply, or divide
  3. Enter the coefficient and exponent for your second number
  4. Hit Calculate and get your result instantly in all three notation formats
  5. Use Reset to clear the fields and start a new calculation

Worked Example

Let’s say you want to multiply 3.0 × 10⁸ (the speed of light in m/s) by 2.5 × 10³.

  • Enter 3.0 and 8 for the first number
  • Select ×
  • Enter 2.5 and 3 for the second number
  • Hit Calculate

Result:
Scientific Notation: 7.5 × 10¹¹
E Notation: 7.5E+11
Decimal Notation: 750,000,000,000

Who Is This Calculator For?

This tool is built for anyone working with very large or very small numbers:

  • Students solving physics, chemistry, or astronomy problems
  • Engineers working with measurements across scales
  • Scientists handling data in research and lab reports
  • Teachers demonstrating notation conversions in class

Whether you’re checking homework or verifying a calculation on the job, this calculator gives you accurate results across all three notation formats — fast.

Guide