Scientific Notation Converter
Convert numbers to and from scientific notation. View results in multiple formats including e notation, engineering notation, and SI prefixes.
Scientific Notation Converter
Convert numbers to and from scientific notation
Enter any number (supports very large and very small numbers)
Formula
N = c × 10^e (where 1 ≤ |c| < 10)How to Use
- 1Choose conversion direction — Select whether to convert from decimal to scientific notation or vice versa.
- 2Enter your number — For decimal input, type any number. For scientific notation, enter the coefficient and exponent.
- 3View all formats — See your number in decimal, scientific notation, e notation, and engineering notation.
- 4Copy results — Click the copy button to copy any format to your clipboard.
Frequently Asked Questions
What is scientific notation?
Scientific notation expresses numbers as a coefficient between 1 and 10 multiplied by a power of 10. For example, 314159 becomes 3.14159 × 10^5. It's useful for very large or very small numbers.
What is the difference between scientific and engineering notation?
Engineering notation is similar to scientific notation, but the exponent is always a multiple of 3 (matching SI prefixes like kilo, mega, milli, micro). For example, 314159 is 314.159 × 10^3 in engineering notation.
What is e notation?
E notation is a compact way to write scientific notation used in calculators and programming. Instead of 3.14 × 10^5, you write 3.14e5. The "e" stands for "exponent" or "times 10 to the power of".
What are SI prefixes?
SI prefixes are standardized prefixes for powers of 10, like kilo (10^3), mega (10^6), milli (10^-3), and micro (10^-6). They're commonly used in science and engineering.