Shower Water Rechner
Berechnen Sie water usage und heating cost per shower. See savings aus low-flow showerheads.
Water per Shower
20.0 gallons
Water per Shower vs Showerhead Flow Rate
Formel
## How to Calculate Shower Water Usage Showers account for about 20% of indoor water use and are a major hot water expense. ### Formula **Water per Shower = Duration (min) * Flow Rate (GPM)** **Annual Water = Per Shower * Showers/Week * 52** ### Flow Rates - Standard showerhead: 2.5 GPM - WaterSense low-flow: 2.0 GPM - Ultra low-flow: 1.5 GPM - Rain showerhead: 2.0-2.5 GPM
Lösungsbeispiel
An 8-minute shower with 2.5 GPM showerhead, 7 showers/week, $0.02/gal heating cost.
- 01Water per shower: 8 * 2.5 = 20 gallons
- 02Weekly: 20 * 7 = 140 gallons
- 03Annual: 140 * 52 = 7,280 gallons
- 04Heating cost: 7,280 * $0.02 = $146/year
Häufig Gestellte Fragen
How long is the average shower?
The average American shower lasts about 8 minutes and uses 17-20 gallons. A 5-minute shower with a low-flow head uses only 7.5 gallons.
How much does a low-flow showerhead save?
Switching from 2.5 GPM to 1.5 GPM saves about 40% of shower water and reduces hot water heating costs by $50-100 per year per person.
Is a bath or shower more water-efficient?
A bath uses 30-50 gallons. An 8-minute shower at 2.5 GPM uses 20 gallons, making showers more efficient. However, a quick 4-minute shower vs. a partial bath can be comparable.