A visible, friendly countdown for shorter showers without turning them into a military exercise.
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About this tool
How it works
Estimated water use equals minutes multiplied by the shower's entered flow rate. Actual flow varies by fixture and pressure.
Example
Reducing a 10-minute shower to 6 minutes at 9 litres per minute saves about 36 litres.
Private by default
The calculation or transformation happens in this browser. There is no account, and the values you enter are not sent to NaughtyBear Labs.
How to use Shower Timer
- Set a target shower length and, if known, the showerhead flow rate.
- Start the timer and follow the simple stage prompts.
- Review estimated water use and compare it with a longer usual shower.
Common questions
- How is water use estimated?
- Estimated litres equal shower minutes multiplied by the entered litres-per-minute flow rate.
- How can I measure shower flow?
- Collect water for a known number of seconds, measure the volume, and scale it to one minute. Take care around wet surfaces.