Rounding Calculator

Round numbers to decimal places, significant figures, or nearest multiple.

Calculator Numbers & Math Updated Apr 20, 2026
How to Use
  1. Enter a number and pick a rounding mode.
  2. Switch between decimal places, sig figs, and nearest multiple.
Input
Result

Modes

Decimal places
round to N digits after the decimal point
Significant figures
keep N meaningful digits, starting from the first non-zero
Nearest multiple
round to nearest multiple of M (e.g. 0.25, 5, 100)

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