Scientific Notation Converter
Scientific notation writes very large or very small numbers compactly as a mantissa times a power of 10. This free converter turns any number into scientific notation (and shows E-notation) instantly.
How to Use This Converter
- Enter any number — standard (123000) or scientific (1.23e5) form both work.
- Click Convert.
- See the scientific notation, E-notation, and standard form.
N = m × 10e, where 1 ≤ |m| < 10
Move the decimal so one non-zero digit is left of it; the exponent counts the moves.
Worked Example
123,000 → move decimal 5 places left → 1.23 × 105 (E-notation: 1.23e5). 0.00045 → 4.5 × 10−4.
Our Testing Process
Every DaProfitClub tool is tested before publishing. We verify conversions against manual calculations and reference tools, test edge cases (zero, negatives, very small decimals), and confirm the tool works on desktop and mobile browsers.
Frequently Asked Questions
What is E-notation?
Shorthand where “e” means “×10^”. So 1.23e5 = 1.23 × 105 = 123,000. Calculators and programming use it.
Why use scientific notation?
It keeps huge/tiny numbers readable and makes the order of magnitude obvious — essential in science, engineering, and finance.
How do I enter 10 to the power?
Type it as E-notation, e.g., 6.02e23 for Avogadro’s number. The converter accepts it directly.
What about zero or negative numbers?
Zero is 0 × 100. Negatives keep their sign, e.g., −5,000 = −5 × 103.
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Last updated: September 30, 2026