What is that leak costing you?
Pick the fixture and how bad the leak is. You get a yearly and monthly cost for the water it wastes.
Based on EPA WaterSense published figures for typical drip and leak rates, and the EPA's 2024 national residential water and wastewater rate average. Your local rate may be higher or lower, since rates vary a lot by city.
How this calculator works
Pick the leaking fixture and how bad the leak is. Gallons per day come from the EPA WaterSense figures for typical drip and leak rates. The dollar figure uses the EPA's 2024 national average of $16.83 per 1,000 gallons for water and wastewater combined.
Water rates vary a lot between cities, so treat the result as a source-based estimate, not a prediction of your exact bill.
Frequently asked questions
How much water does a dripping faucet waste?
EPA WaterSense estimates a faucet that drips once a second wastes about 3,000 gallons a year. At national average rates, that shows up as real money on a water bill even though the leak looks minor.
How much water does a running toilet waste?
EPA cites about 200 gallons a day for a typical running toilet. This calculator covers the range from a faint, occasional run to a toilet that never stops.
Why is my water bill higher than the calculator says?
Rates differ widely by city, and many utilities bill sewer charges based on water use. The calculator uses one national average, so your local rate may be higher or lower.
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Last updated October 2026. Reviewed by the Fix or Hire editorial team. Estimates only, not a quote.