Converters
Scientific Notation Converter
Convert numbers to and from scientific and engineering notation.
Free foreverRuns in your browserNo sign-up
Enter a plain number like 1234.5 or a scientific value like 1.2345e3 or 1.2345 x 10^3.
| Standard (decimal) | 1234.5 | |
| Scientific notation | 1.2345 × 10^3 | |
| E notation | 1.2345e+3 | |
| Engineering notation | 1.2345 × 10^3 |
About the Scientific Notation Converter
Convert a number between standard decimal form, scientific notation, E notation and engineering notation.
Enter a plain number like 1234.5 or a scientific value like 1.2345e3, and see every form side by side.
Useful for science, engineering and calculators that display very large or very small numbers.
Key features
- Standard, scientific, E and engineering forms
- Accepts decimal or scientific input
- Copy any form in one click
- Runs entirely in your browser
How to use
- 1Type a number in plain or scientific form.
- 2Read every equivalent form in the table.
- 3Copy the form you need in one click.
Examples
Standard to scientific
Input:
1234.5Output:
1.2345 x 10^3The number is written as a mantissa between 1 and 10 times a power of ten.
Small number
Input:
0.00042Output:
4.2 x 10^-4Small numbers use a negative exponent.
Frequently asked questions
- What is engineering notation?
- Engineering notation is like scientific notation but the exponent is always a multiple of three, which lines up with units like kilo, mega and milli.
- What input formats are accepted?
- You can type a plain number like 1234.5, E notation like 1.2345e3, or a form like 1.2345 x 10^3.
- Is my data uploaded?
- No. The conversion runs entirely in your browser.