How it works
Express a number as a mantissa and a power of ten. Zero is displayed separately because it has no unique normalized exponent.
a = m × 10ⁿ, 1 ≤
Worked example
Show example inputs and result
Number: 123,456.
- Result
- 1.23456000e+5
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy