Sprinkler runtime calculator
Measure your project. Make a clearer plan.
Convert your chosen watering depth and measured sprinkler output into runtime.
BEHIND THE NUMBERS
Clear math. Better decisions.
Runtime in minutes = target depth ÷ measured precipitation per hour × 60.
A worked example
A 0.5 inch target and a measured 0.75 inch per hour precipitation rate needs 40 minutes.
Before you order
- Convert your chosen watering depth and measured sprinkler output into runtime.
- Measure output using catch cans. Split watering into cycles if runoff occurs; the tool does not choose a plant watering schedule.
Reference: Colorado State University Extension: Methods to schedule home lawn irrigation.
Good questions.
Where do the prices come from?
You enter actual supplier prices. A blank price is unknown; enter zero only when that item is free or deliberately excluded. Taxes and installation are excluded unless a field explicitly includes them.
Can I use metric measurements?
Yes. The unit selector converts dimensions and unit prices. Results use whole packages where applicable. Starting dimensions are examples; confirm product specifications before ordering.
KEEP THE PROJECT MOVING