Turn emitter flow into a watering runtime.

Start with the water volume the soil should receive.

One millimetre over one square metre equals one litre. The calculator converts the target depth across the selected area into litres, totals the rated output of every emitter, applies an efficiency allowance, and divides required volume by effective flow to estimate runtime.

The result is most useful after checking actual emitter output. Long tubing runs, pressure changes, blocked emitters and slope can make real flow differ from the printed rating, so catch and measure water from representative emitters before locking in a permanent schedule.