Formula
Water use = shower flow rate × duration × showers per day × people.
Climate & Resources · Tool 1,107 of 200,000
Shower Water Use Calculator
Enter your values for a transparent, reproducible shower water use calculator, with the formula and scope shown.
LiveGeneral formulaLocal calculationUS · USD
Your inputs
Enter real numbers
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Live result
Monthly shower water use
5.4 m³
Estimated daily amount: 47.55 gal.
- Per person per shower
- 23.78 gal
- Household daily use
- 47.55 gal
- Household annual use
- 65.7 m³
Reproducible, not guessed
How was this calculated?
Scope
Measure one minute of flow with a graduated container for a more accurate result.
Model context
localeen-UScountryUScurrencyUSDtimezoneAmerica/New_Yorkunit_systemimperialrules_versionus-2026.08source_languageen-US
Results are for first-pass estimates and scenario comparison. Important tax, employment, health and investment decisions should be verified against local official guidance or a qualified professional.