Sprinkler System Calculator — Calculate Water Usage & Cost

Sprinkler System Calculator

Calculate the water usage and cost for your sprinkler system. Understand how flow rates, area size, and water pressure affect your irrigation expenses.

Step 1: System Details

6
1.5 GPM

Understanding Flow Rates

Flow rate determines how much water each sprinkler head uses per minute. Typical residential sprinklers use 1-3 GPM. Higher flow rates cover larger areas but increase water usage.

Step 2: Water & Cost Details

About Water Rates

Water rates vary significantly by location. Typical residential water costs range from $0.002 to $0.015 per gallon. Check your water bill for accurate local rates.

Sprinkler System Cost Results

Summary
Usage Comparison
Cost Analysis

Estimated Monthly Water Cost

$16.20
Water Used: ~5,400 gallons
Daily Water Usage
180 gallons
Weekly Water Cost
$3.78
Seasonal Cost
$97.20
Water per sq ft
0.18 gal/sq ft

Water Usage Comparison

System Type Area Size Monthly Water Monthly Cost Cost per sq ft

Water Cost Analysis

Water Cost Formula

Cost = (Sprinklers × Flow Rate × Time × Days × Rate) × 4.33

The monthly cost is calculated by multiplying the number of sprinklers by their flow rate, watering time, days per week, and water rate, then multiplying by 4.33 (average weeks per month).

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