Scientific Notation Calculator
Convert numbers to and from scientific notation, E-notation and engineering notation.
About the Scientific Notation Calculator
Scientific notation writes a number as a value between 1 and 10 times a power of ten, so huge and tiny numbers are easy to read and compare: 45,067,000 = 4.5067 × 10⁷. Engineering notation uses powers that are multiples of 3, matching prefixes like kilo, mega and micro.
The formula
x = m × 10ⁿ, with 1 ≤ |m| < 10
- m
- mantissa (coefficient)
- n
- exponent: how many places the decimal point moved
Worked example
0.000045067
- Move the point 5 places right: 4.5067
- = 4.5067 × 10⁻⁵
Questions people ask
What is E-notation?
Calculators and code write 4.5067 × 10⁻⁵ as 4.5067e-5.
How do I enter scientific notation?
Type 4.5e-5 or 4.5 × 10^-5.