Round numbers using four different methods: round, floor, ceil, and truncate. Compare results side by side with custom decimal precision.
- Enter any decimal number
- Set desired decimal places (0-15)
- Compare all four rounding results
- Click copy on any result
- Four rounding methods: round, floor, ceil, trunc
- Customizable decimal precision (0-15)
- Side-by-side result comparison
- One-click copy for each result
What's the difference between floor and truncate?
For positive numbers, they're the same. For negative numbers: floor(-3.7) = -4 (toward -∞), but trunc(-3.7) = -3 (toward 0).
Which rounding method should I use?
Use round() for general purposes, floor() for always rounding down, ceil() for always rounding up, trunc() for simply removing decimals.
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