Calculating your runoff

All fields are mendatory

Area (square metre):


Average rainfall (metre):


CATCHMENT :

Roof Paved area Driveways/courtyards, roads Unpaved area garden, playground

Runoff Generated (cubic metre) : {{area * 0.8 * rainfall}}

Runoff Generated (cubic metre) : {{area * 0.6}}

Runoff Generated (cubic metre) : {{area * 0.1}}