Estimate your landscape water reduction in 30 seconds.
Set your property type, irrigated area, and average summer bill. The calculator returns design-standard estimates for gallons saved per year, dollars saved per year, projected reduction percentage, and approximate payback. Property-specific numbers come from your free written Water Savings Analysis.
See your numbers before you commit.
Estimates use The Plant Institute's published design-standard reduction midpoints. Implementation cost coefficients vary by property type and reflect typical scope. Use the free written analysis for a property-specific forecast.
Your projected savings
Projected reduction is the design-standard midpoint for the selected property type. Your free written analysis refines this from your actual water-district billing.
Get my verified analysisFive inputs. Four outputs. A clearly stated model.
The calculator on this page is a design-standard estimator — useful for setting expectations before requesting a property-specific analysis. The model is published below so you can evaluate the assumptions yourself.
INPUT
Property type
Sets the design-target reduction percentage and implementation-cost coefficient. Different scopes apply to homeowner, HOA, commercial, and municipal projects.
INPUT
Irrigated area
Square footage actually receiving irrigation — not total lot size. Used to estimate baseline summer-season water demand.
INPUT
Average summer bill
Your monthly utility cost during peak watering months. Used to scale dollar savings against your actual rate tier rather than a hypothetical average.
OUTPUT
Annual gallons saved
Estimated annual gallons returned to the watershed and not applied as irrigation, at the design-target reduction percentage.
OUTPUT
Annual dollars saved
Estimated annual utility-bill reduction at your current rate tier and watering profile.
OUTPUT
Reduction % & payback
Design-standard reduction percentage for your property type, plus an approximate payback in months against the typical project scope at your area size.
What the calculator can and cannot do.
What it can do
Set realistic expectations for the order-of-magnitude reduction available on a property of your type and size, before you commit to a written analysis. Compare property-type scenarios.
What it cannot do
Account for your specific canopy condition, soil type, controller programming, irrigation hardware, microclimate, or local rate structure. The free written analysis does all of these — at no cost.
Replace the estimate with a property-specific forecast.
A Plant Institute researcher reviews your water district's published rate structure, overlays satellite canopy imagery, and returns a written reduction forecast within 5 business days.
Free Water Savings Analysis
Property-specific. No cost.