Scientific Notation Calculator
Convert a decimal number into scientific and engineering notation, with a chosen number of significant figures.
Your result
Review your calculated values below.
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Choose Calculate to see your result.
How to use this calculator
- Enter your values in the labeled fields, keeping the displayed units.
- Choose Calculate or press Enter in a single-line field.
- Review the result and the assumptions below before using it.
Formula and method
Scientific notation writes a nonzero number as a × 10^n with 1 ≤ |a| < 10. Engineering notation uses an exponent divisible by three.
Worked example
123456 becomes 1.23456 × 10^5 in scientific notation and 123.456 × 10^3 in engineering notation.
What the result assumes
Uses JavaScript floating-point numbers. Extremely small or large inputs must stay within the finite numeric range; output is rounded to your chosen precision.
Common question
Can I enter a number such as 1.2e-6?
Yes. The number field accepts exponent notation in browsers that support it; 0.0000012 is equivalent.