Rachio Water Savings Calculator

The calculator uses EPA WaterSense's published average outdoor water use for residential lawns (about 0.62 gallons per square foot per week during the watering season) and applies Rachio's documented 20–30% reduction range to estimate how much you'd save with a smart controller. Multiplying by an average Northern Colorado water rate gives a dollar estimate.

Estimates are based on industry averages, not your specific home. Actual savings depend on lawn size, soil type, slope, plant types, sun exposure, your current irrigation schedule, and your water utility's pricing tiers. Treat the result as a directional estimate, not a guaranteed savings amount.

EPA WaterSense publishes that an average American family's outdoor water use is about 30% of total water consumption — and that WaterSense-certified controllers reduce outdoor use by 15% on average, with smart controllers like the Rachio 3 typically delivering 20–30% reductions. Northern Colorado water rates average roughly $0.005–$0.010 per gallon depending on city and tier.

On a typical Front Range home with a moderate-to-large lawn, water bill savings often cover the installed cost of a Rachio 3 within 2–4 watering seasons. Adding a city utility rebate (Erie, Longmont, Lafayette) shortens the payback further. Confirm rebate eligibility directly with your city before counting on those numbers.