Estimate how much a water heater leak could add to a water bill by gallons per minute, days leaking, water rate, and sewer charges.
Water bill
$114
All-in rate
$15.83 per 1k gal
Best next check
Leak and irrigation
Estimate a leak by flow rate, days leaking, water rate, and sewer charge relationship. Use your bill for a better local rate.
Water wasted
10,800 gal
Estimated gallons lost during the selected period.
Added cost
$122
Water charge plus an estimated sewer charge.
Water charge
$67.50
The usage portion based on your rate per 1,000 gallons.
Daily pace
$4.05
How much the leak may add each day.
Small leaks near a heater can add water and energy costs.
The fastest way to confirm the estimate is to check the meter when all fixtures are off. If the meter still moves, water may be flowing somewhere in the home or yard.
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Separate usage, base, sewer, stormwater, and service charges.
Open pageBrowse the leak index for toilets, faucets, showers, irrigation, and service lines.
Open pageCompare the leak estimate against normal household gallons per month.
Open pageEstimate the monthly savings after repairing the leak or reducing gallons.
Open pageStart with 0.03 gallons per minute and adjust rate, days, and sewer charges.
Open pageStart with 0.1 gallons per minute and adjust rate, days, and sewer charges.
Open pageStart with 1.5 gallons per minute and adjust rate, days, and sewer charges.
Open pageStart with 2 gallons per minute and adjust rate, days, and sewer charges.
Open pageStart with 0.2 gallons per minute and adjust rate, days, and sewer charges.
Open pageShort answers for search visitors and bill-checking moments.
This calculator starts with 0.25 gallons per minute for water heater leak, then multiplies by time, water rate, and an optional sewer charge multiplier.
Many water bills include sewer or wastewater charges tied to water use. If your bill does not apply sewer charges to leaks, set the multiplier to 0.
Inspect the pan, relief valve, supply connections, and nearby floor.