Rounding Calculator (Decimals, Nearest 10, 100…)
Rounding calculator: round to whole numbers, decimal places, the nearest 10, 100, 1,000, 0.5 or 0.25, using half-up, banker’s, floor or ceiling rounding.
round(x / step) × step
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Standard rounding sends a 5 away from zero; banker’s rounding sends it to the nearest even digit to avoid bias. Floor always rounds down, ceiling always up.
Frequently asked questions
3.14159 to 2 decimals?
3.14.
2.5 with banker’s rounding?
2 (3.5 becomes 4).
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