---
title: pi
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/decimal/pi
---

# pi

The mathematical constant pi.

## Declaration

```swift
static let pi: Decimal
```

## See Also

### Getting particular decimals

- [greatestFiniteMagnitude](foundation/decimal/greatestfinitemagnitude.md)
- [leastFiniteMagnitude](foundation/decimal/leastfinitemagnitude.md)
- [leastNonzeroMagnitude](foundation/decimal/leastnonzeromagnitude.md)
- [leastNormalMagnitude](foundation/decimal/leastnormalmagnitude.md)
- [nan](foundation/decimal/nan.md)
- [quietNaN](foundation/decimal/quietnan.md)
- [radix](foundation/decimal/radix.md)
- [NSDecimalMaxSize](foundation/nsdecimalmaxsize.md)
- [NSDecimalNoScale](foundation/nsdecimalnoscale.md)