Scientific and Engineering Notation
Scientific and Engineering Notation with explicit inputs, formulas and domain checks.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Zero has exponent0 by convention. Input and output use floating-point precision; significant-digit rounding may change the exponent.
Example Calculation
- Number: 12345
- Notation: Scientific
- Significant digits: 6
12345=1.2345×10⁴; in engineering notation it is12.345×10³.
Frequently asked questions
How do I use this calculator?
Enter number, notation, significant digits. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Scientific exponent is floor(log₁₀|x|); engineering exponent is the lower multiple of3.. Zero has exponent0 by convention. Input and output use floating-point precision; significant-digit rounding may change the exponent.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.