Scientific Notation Calculator

Normalize decimal values to scientific notation, expand notation back to decimal, and multiply or divide two scientific-notation values.

Stable numericsSubstitute / reconstructIndependent checkLocal calculation

Number

4.56 × 10^-4Scientific notation

4.56Coefficient

-4Exponent

4.56e-4E notation

Engineering notation, significant figures & arithmetic

Keep the number above as the first operand, choose display precision, and compare scientific, E, and engineering notation. A second operand supports the four basic operations while the simpler converter stays first.

Significant figuresOperationSecond number

—Scientific notation

—E notation

—Engineering notation

—Order of magnitude

—Numeric result

Arithmetic uses browser double-precision numbers; significant-figure formatting does not create extra measurement precision.