Home Water Leak Cost Calculator

Even small leaks add up fast. Enter your estimated leak rate and your water utility's cost per unit to see the real dollar impact of that drip, running toilet, or slow pipe leak.

Estimated Annual Cost of Leak
Gallons wasted per day
Gallons wasted per month
Gallons wasted per year
Estimated monthly cost

About this calculator

Find out how much a dripping faucet, running toilet, or pipe leak is costing you per month and per year based on your local water rate.

Frequently Asked Questions

How much water does a dripping faucet actually waste?

A faucet dripping once per second can waste over 3,000 gallons per year, which is why even minor drips are worth fixing.

Where do I find my water rate?

Check your water utility bill for the cost per unit, usually listed per 1,000 gallons or per 748-gallon unit (100 cubic feet).

Does this include sewer charges?

You can enter a combined water+sewer rate if your bill charges both based on water usage, which many utilities do.