# slotNumberToMm

> Converts a US slot number to millimeters (1 slot = 0.001 in = 0.0254 mm).

> **slotNumberToMm**(`slotNumber`): `number`

Converts a US slot number to millimeters (1 slot = 0.001 in = 0.0254 mm).

## Parameters

### slotNumber

`number`

## Returns

`number`