Calculate water usage in gallons, liters, cubic feet, daily use, monthly use, yearly use, and water cost. Use this water usage calculator for outdoor watering, gardens, lawns, irrigation, hoses, sprinklers, pond refills, rain barrel planning, livestock water, washing, and conservation estimates.
Flow rate and time:
The calculator multiplies flow rate by run time, zones, uses per day, and watering frequency to estimate total gallons used.
Area and water depth:
Enter area and applied water depth to estimate gallons needed for lawn, garden, or landscape watering.
Daily or monthly usage:
Enter a known daily amount and number of days used to estimate total usage and cost.
Repeated uses:
Enter water per event and number of events to estimate total usage for refills, washing, livestock, or other repeated outdoor uses.
A water usage calculator helps estimate how much water outdoor activities use and what that water may cost.
It can be useful for gardens, lawns, irrigation systems, hoses, sprinklers, ponds, livestock, rain barrels, conservation planning, outdoor cleaning, and water budgeting.
Your result shows estimated total water usage, daily usage, weekly usage, monthly usage, yearly usage, gallons, liters, cubic feet, cubic meters, water cost, rainwater offset, efficiency loss, and cost after extra fee multiplier.
Multiply flow rate by run time. For repeated use, multiply by the number of uses, zones, days, or events.
One inch of water over 1,000 square feet is about 623 gallons.
Use the area and water depth mode. Enter the watered area and the inches of water applied, then adjust for irrigation efficiency.
Actual usage can vary because of pressure, flow rate changes, leaks, runoff, wind, evaporation, sprinkler overlap, soil absorption, hose restrictions, and meter accuracy.