Calculadora de Agua de Ducha — Fórmula
## 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
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
Ejemplo Resuelto
An 8-minute shower with 2.5 GPM showerhead, 7 showers/week, $0.02/gal heating cost.
- Water per shower: 8 * 2.5 = 20 gallons
- Weekly: 20 * 7 = 140 gallons
- Annual: 140 * 52 = 7,280 gallons
- Heating cost: 7,280 * $0.02 = $146/year