A small measurement
0.00004520 becomes 4.520 × 10^-5. Engineering notation writes the same value as 45.20 × 10^-6.
Move between decimal and exponent notation
Examples: 0.00004520, -735000, 6.02214076e23. Type e notation instead of ×10 powers.
Results
Normalized scientific notation
4.520 × 10-5
Engineering notation (exponent multiple of 3)
45.20 × 10^-6
E notation
4.520e-5
Ordinary decimal
0.00004520
The scientific coefficient has magnitude from 1 up to, but not including, 10. Zero is displayed with exponent 0. Written trailing digits are retained for nonzero values; this tool does not infer measurement precision.
Calculations and exports run locally in your browser. Your entries are not sent to a calculation service.
How to use the Scientific Notation Converter
- 01
Type an ordinary decimal or an e expression such as 4.52e-5.
- 02
Read the scientific coefficient and exponent together.
- 03
Compare the engineering and ordinary forms, then copy or download all representations.
Examples
A large count
735000 becomes 7.35000 × 10^5. Written digits are retained here; the converter does not decide whether the trailing zeros describe measurement precision.
An e expression
6.02214076e23 means 6.02214076 multiplied by ten to the twenty-third power. The ordinary decimal expansion has 24 digits before its decimal point.
Normalized scientific notation
For a nonzero value, the coefficient’s magnitude is at least one and less than ten. Moving the decimal point left raises the exponent; moving it right lowers the exponent. The sign belongs to the coefficient and does not change the exponent rule.
Engineering notation groups powers of three
Engineering notation restricts the exponent to a multiple of three, with a nonzero coefficient’s magnitude from one up to 1000. This can make adjacent scales easier to compare. The output is still a numerical representation and does not automatically attach a unit or prefix.
Representation versus significant figures
For nonzero inputs, the converter preserves written digits after removing leading zeros. A plain integer’s trailing zeros may be ambiguous as a precision statement, so no measurement claim is inferred. Use the significant figures calculator when you want to select a reporting precision.
What to know
- Accepts up to 300 digits with an explicit e exponent from −300 through 300.
- Output is decimal notation only; no unit conversions, arithmetic expressions, or implied measurement uncertainty.
Common questions
Can I type a multiplication sign and a superscript?
The input accepts decimal and e notation rather than mathematical typography. Type 4.52e-5 instead of 4.52 × 10^-5.
Is a negative exponent a negative number?
No. A negative exponent indicates division by a power of ten. For example, 2e-3 is positive 0.002. A leading minus sign makes the number negative.
What happens to zero?
Zero is displayed as 0 × 10^0 and ordinary 0. Trailing zero precision in zero-valued input is not preserved by this converter.