GlenCalc

Scientific notation calculator

Type a number as decimals or in E notation (like 6.022e23). You get it in scientific, engineering and plain decimal form.

Your answer

Scientific notation4.568 × 10⁻⁵
Engineering notation45.68 × 10⁻⁶
E notation4.568e-5
Decimal0.000045678

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How we worked it out

Updated as you change the numbers.

  1. Move the decimal point until one non-zero digit is left of it; the number of places moved is the power of ten (negative if moved right).
  2. Engineering notation uses powers of ten that are multiples of 3 (kilo, mega, milli, micro).

Method and assumptions

Scientific notation writes a number as m × 10ⁿ with 1 ≤ |m| < 10. Engineering notation restricts n to multiples of 3, matching SI prefixes. Rounding keeps the number of significant figures you choose.

Questions

What is 0.000045678 in scientific notation?

4.568 × 10⁻⁵ to 4 significant figures.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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