Water & irrigation · FREE PROJECT TOOL

Drip irrigation calculator

Measure your project. Make a clearer plan.
Estimate total drip flow, delivered water, and optional variable water cost.

Your measurements

US gal / hour
minutes
USD / 1,000 US gal

All prices are USD and supplied by you. Starting quantities are examples.

BEHIND THE NUMBERS

Clear math. Better decisions.

Volume = emitter count × emitter flow per hour × runtime ÷ 60.

A worked example

20 emitters at 1 US gal/hour running for 30 minutes deliver 10 US gallons.

Before you order

  • Estimate total drip flow, delivered water, and optional variable water cost.
  • Assumes equal-flow emitters operating at their rated pressure. Check zone capacity and measured emitter output.

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

Next in your tool shed.