Overview
Scientific notation is a compact way to write very large or very small numbers. Instead of writing 0.000001, we write 1 × 10^−6. This calculator converts between ordinary, scientific and engineering notation.
Formula
Number = coefficient × 10^exponent, where 1 ≤ |coefficient| < 10.
How it works
Choose the conversion type
From a number to scientific notation, or the reverse.
Enter the value
Use decimal form, e notation, or × 10^ notation.
Read the results
Scientific and engineering notation, coefficient and exponent are shown.
Worked examples
Example 1: 12345
1.2345 × 10^4.
Example 2: 0.000123
1.23 × 10^−4, or 123 × 10^−6 in engineering notation.
Frequently asked questions
What is the difference between scientific and engineering notation?
Scientific notation can use any integer exponent, while engineering notation restricts the exponent to multiples of 3.
Can I enter a negative number?
Yes, and the sign is handled with the coefficient.
Is the form 1.23e4 accepted?
Yes. It is a common form in calculators and software.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.