Everyday Tools
Rounding Calculator
Round a number to a chosen number of decimal places, or to the nearest 10, 100 or 1000, with standard rounding rules.
Your results
Rounded value123.46
Calculation breakdown
- Rounded value
- Standard round-half-up rounding to the chosen precision
Worked example
123.456 rounded to 2 decimal places is 123.46, or to the nearest 100 is 100.
Assumptions
- Uses round-half-up rounding, so 0.5 rounds up.
- Decimal-place setting is ignored when rounding to nearest 10, 100 or 1000.
How this calculator works
This calculator rounds a number to the decimal-place precision or nearest whole-number multiple you choose, using standard round-half-up rules. It's useful for tidying measurements, invoices or reported figures.
Frequently asked questions
What rounding rule is used?
Standard round-half-up rounding is used, so 0.5 rounds up to 1 rather than to the nearest even number.
Can I round to the nearest 100 or 1000?
Yes, choose that option from the rounding target and any decimal-place setting is ignored.
Does it work with negative numbers?
Yes, negative numbers are rounded correctly, for example -2.5 rounds to -3 with round-half-away-from-zero.
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