# calculateSpecificCapacity

> Specific capacity Q/s (m²/h). Throws RangeError when drawdown is zero.

> **calculateSpecificCapacity**(`flowRate`, `drawdown`): `number`

Specific capacity Q/s (m²/h). Throws RangeError when drawdown is zero.

## Parameters

### flowRate

`number`

### drawdown

`number`

## Returns

`number`