Rounding Calculator
Round numbers to decimal places, whole numbers, or a nearest multiple. Compare half-away, half-even, ceiling, floor, and truncation results.
What this rounding calculator covers
The dominant English intent is practical number rounding: decimal places, nearest whole number, and place-value style outputs. Developer and statistics users also look for half-even rounding, so the tool compares methods side by side.
Round x to d digits after the decimal point, or switch modes for whole numbers and nearest multiples.
- Round to 0-15 decimal places.
- Round to the nearest integer or any positive multiple.
- Compare half away from zero, half to even, ceiling, floor, and truncation.
Rounding methods
| Method | Typical use |
|---|---|
| Half away from zero | School math and many everyday calculations |
| Half to even | Statistics, accounting systems, and Python round behavior |
| Ceiling | Capacity, packages, trips, or anything that must cover a minimum |
| Floor | Limits, conservative estimates, or maximum allowed whole units |
Frequently Asked Questions
Sources and References
Calculations are based on the listed reference sources. Links open in a new tab.
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