Scientific Notation Calculator

Convert between decimal numbers and scientific notation. Perform arithmetic operations (add, subtract, multiply, divide) directly in scientific notation.

Result

Fill in the fields above, then press Calculate.

A scientific notation calculator converts between decimal numbers and scientific notation, and performs arithmetic operations (add, subtract, multiply, divide) directly in scientific notation.

Choose a mode: convert a decimal number to scientific notation, convert from scientific notation back to decimal, or perform arithmetic (add, subtract, multiply, divide) in scientific notation. Enter your number(s) as prompted. Click Calculate to see the result in both scientific and engineering notation.

Examples

Small Number

0.0000000056 is 5.6 × 10^-9.

Large Number

1,500,000,000 is 1.5 × 10^9.

Frequently Asked Questions

What is the difference between scientific and engineering notation?
In scientific notation, the coefficient is between 1 and 10. In engineering notation, the exponent is always a multiple of 3.
Related Calculators
Exponent Calculator
Rounding Calculator
Big Number Calculator
Logarithm Calculator

Quick Tips

  • •Double-check your inputs — a misplaced decimal point changes the exponent dramatically.
  • •Use engineering notation (exponents in multiples of 3) for easier unit prefix mapping (kilo, mega, giga).
  • •When multiplying in scientific notation, add the exponents and multiply the coefficients separately.