Scientific Notation Converter
Express a decimal or exponent-form number in scientific and engineering notation.
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How to use Scientific Notation Converter
Scientific notation uses one nonzero digit before the decimal point. Engineering notation uses an exponent divisible by three.
- Enter number, significant digits (1–15).
- Check that the input follows the stated limits and uses consistent units.
- Run the calculator, review the result, then copy or download it.
Good to know
- Rounding uses JavaScript decimal formatting and may reflect binary floating-point representation. Supported precision is 1–15 significant digits.
- Decimal inputs have at most 120 characters and magnitude from 1e-100 to 1e15, or zero. Floating-point results are rounded to 12 significant digits; extreme derived results may underflow or be rejected. Exact integer results are identified separately.
Common questions
What calculation does Scientific Notation Converter perform?
Scientific notation uses one nonzero digit before the decimal point. Engineering notation uses an exponent divisible by three.
How does engineering notation differ?
Its exponent is a multiple of three, aligning naturally with SI scale steps such as kilo and milli.
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