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Rounding Calculator
Round to nearest, up, down, or specific decimal place.
Enter values to see your result
Frequently asked questions
Half-up vs banker's?
Half-up: 2.5 → 3. Banker's (half-even): 2.5 → 2 (nearest even). Banker's is statistically unbiased, used in finance.
When to use truncate?
When you want to drop decimals regardless of value. 3.9 → 3, −3.9 → −3. Different from floor for negatives.
Default in most software?
Half-up (standard rounding) is most common in everyday use. Python uses banker's by default; Excel uses half-up.