Math
Scientific Notation Calculator
Use this calculator to write very large or very small numbers in scientific notation for science, math, and engineering work.
Try an example
Result
Scientific notation
—
- Coefficient
- —
- Power of 10
- —
Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
Use this calculator with
Follow these when you want the formula behind the answer, a short lesson, or nearby tools in the same topic.
What the scientific notation calculator solves
Use this calculator to write very large or very small numbers in Writing a number as one digit, a decimal part, and a power of ten. for science, math, and engineering work.
Formula
How to use it
- Enter the number.
- Read the The number multiplying a variable, like the 3 in 3x. and power of 10.
- Use the The small raised number saying how many times to multiply the base by itself. sign to show large or small scale.
How to read the answer
Positive exponents mean large numbers. Negative exponents mean decimals smaller than 1.
Common mistakes and edge cases
- The coefficient should be at least 1 and less than 10 in How far a number sits from zero, so the answer is never negative..
- Zero has no unique exponent.
- Keep the negative sign with the coefficient for negative numbers.
Worked examples
Large number
Scientific notation
1.25 x 10^6
Small decimal
Scientific notation
4.2 x 10^-4
Frequently asked questions
What is engineering notation?+
Engineering notation is similar, but the exponent is a multiple of 3. This calculator focuses on standard scientific notation.
Why use scientific notation?+
It makes very large and very small numbers easier to write, compare, and multiply.
About this calculator
- Written by
- mathcheck editorial team
- Last reviewed
- May 8, 2026
Method
- Uses the values entered by the user and stable formulas documented on the page.
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Last updated: May 8, 2026