Engineering Notation Calculator

The Engineering Notation Calculator writes a number with an exponent that is a multiple of three, matching SI prefixes like kilo, mega and milli. Enter a number.

Formula

a × 10ⁿ, where n is a multiple of 3 and 1 ≤ |a| < 1000
  • Engineering notation aligns with SI prefixes (kilo, mega, milli, etc.).
  • The mantissa can range from 1 up to just under 1000.

45230

Inputs
  • Number: 45230

45230 = 45.23 × 10³ (45.23 kilo).

Frequently asked questions

How is engineering notation different from scientific?
It restricts the exponent to multiples of three, so it lines up with SI prefixes like kilo and milli.