Irrigation Calculator

Estimate watering volume, runtime and weekly use.

Irrigated area (sq ft)

Water depth per week (in)

System flow (gal/min)

Watering sessions per week

Water price per 1,000 gal ($)

How to use this calculator

Enter your measurements, product coverage and pricing where requested. Results update instantly as values change.

One inch of water over one square foot equals about 0.623 gallons.

Adjust watering for rainfall, soil type, plant needs and local watering restrictions.

Yes. Round purchase quantities up to whole packages, rolls, pieces or containers and verify coverage with the product manufacturer.