 | Online Rounding Calculator Tool – Free & Easy Decimal Rounding Tool |
Online Rounding Calculator
Round numbers to any decimal place using different rounding methods
Enter Number
Rounding Method
Round Half Up
3.5 → 4, 2.4 → 2
Round Half Down
3.5 → 3, 2.6 → 3
Toward Zero
-2.7 → -2, 2.7 → 2
Away From Zero
-2.3 → -3, 2.3 → 3
Round Half To Even
2.5 → 2, 3.5 → 4
Ceiling
2.3 → 3, -1.7 → -1
Examples
π (5 decimals)
3.14159 → 3.1416
e (3 decimals)
2.71828 → 2.718
√2 (2 decimals)
1.41421 → 1.41
Result
Original value: 3.14159
3.1
Rounded to 1 decimal place
using Round Half Up
using Round Half Up
About Rounding
Rounding means reducing the digits in a number while keeping its value similar. This calculator supports multiple rounding methods:
- Round Half Up: Common method (0.5 rounds up)
- Round Half Down: 0.5 rounds down
- Toward Zero: Round toward zero
- Away From Zero: Round away from zero
- Round Half To Even: Also called "bankers rounding"
- Ceiling: Round toward positive infinity
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