How to use the Scientific Notation Calculator
Enter the number and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.
The formula
a × 10^n with 1 ≤ |a| < 10
Examples
- 45,600
Scientific: 4.56 × 10^4 E-notation: 4.56e+4 Engineering: 45.6 × 10^3 Decimal: 45,600
- 0.00032
Scientific: 3.2 × 10^-4 E-notation: 3.2e-4 Engineering: 320 × 10^-6 Decimal: 0.00032
- 6,022,000,000
Scientific: 6.022 × 10^9 E-notation: 6.022e+9 Engineering: 6.022 × 10^9 Decimal: 6,022,000,000
Limitations and assumptions
Computed in your browser with standard double-precision arithmetic unless the page says otherwise. Very large or very small values may be rounded.
Frequently asked questions
How do I write a number in scientific notation?
Move the decimal point until one non-zero digit remains in front, then multiply by 10 raised to the number of places you moved it.
When is the exponent negative?
For numbers smaller than 1, such as 0.00032 = 3.2 × 10^-4.
What is E notation?
A plain-text form: 4.56E4 means 4.56 × 10^4.
Why use scientific notation?
It keeps long numbers compact and makes magnitude obvious at a glance.