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# NumberFormatter.RoundingMode

These constants are used to specify how numbers should be rounded. These constants are used by the [`roundingMode`](/documentation/Foundation/NumberFormatter/roundingMode-swift.property) property.

```
enum RoundingMode
```

## Topics

### Constants

[`NumberFormatter.RoundingMode.ceiling`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/ceiling)

Round towards positive infinity.

[`NumberFormatter.RoundingMode.floor`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/floor)

Round towards negative infinity.

[`NumberFormatter.RoundingMode.down`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/down)

Round towards zero.

[`NumberFormatter.RoundingMode.up`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/up)

Round away from zero.

[`NumberFormatter.RoundingMode.halfEven`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/halfEven)

Round towards the nearest integer, or towards an even number if equidistant.

[`NumberFormatter.RoundingMode.halfDown`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/halfDown)

Round towards the nearest integer, or towards zero if equidistant.

[`NumberFormatter.RoundingMode.halfUp`](/documentation/Foundation/NumberFormatter/RoundingMode-swift.enum/halfUp)

Round towards the nearest integer, or away from zero if equidistant.


---

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