Brushing water calculator

A bathroom faucet often uses about 1.5 to 2.2 gallons per minute, or roughly 5.7 to 8.3 liters per minute. If the tap runs for a two-minute brush, that can be about 11 to 17 liters each time.

For someone brushing twice a day, the yearly total can easily reach several thousand liters.

Many modern bathroom faucets run near 1.5 to 2.2 gallons per minute. Older fixtures can be higher, while WaterSense-labeled faucets are designed to use no more than 1.5 gallons per minute.

If you do not know your exact flow rate, use 7.5 liters per minute as a reasonable everyday estimate.

Yes, although the money saved from one habit is usually modest. The bigger value is that it cuts treated water use every day, and the savings grow across a household.

If your water bill includes wastewater charges or your hot tap runs during brushing, the cost impact can be higher.

Start with 7.5 liters per minute, which is close to 2 gallons per minute. For a better estimate, fill a one-liter container from the faucet and time how many seconds it takes, then convert that into liters per minute.

WaterSaver estimates savings from your brushing habits, faucet flow rate, and how often you turn the tap off. It is meant to make a small daily action visible, not replace a utility meter.

Over time, the app helps you see streaks, estimated liters saved, and progress from a habit that is easy to forget.