Shower Water Usage
Duration (minutes)
Flow Rate (L/min)
✓Water Usage
Per Shower (L)
64
Daily (L)
64
Annual (L)
23360
A shower water calculator shows litres per shower and annual usage. Standard shower heads use 8–12 L/min; water-efficient models use 6–8 L/min.
- 1Litres per shower = Duration (min) × Flow rate (L/min)
- 2Annual = Per shower × showers per week × 52
- 3Water cost = Volume × water tariff
- 4Heating water is ~18% of home energy bills
9-minute shower, 10 L/min=90 L per shower; 32,850 L/year (1 shower/day)
| Activity | Litres |
|---|---|
| 7-min shower (10 L/min) | 70 L |
| 7-min shower (eco, 6 L/min) | 42 L |
| Bath | 150–200 L |
| Washing machine (full) | 45–80 L |
| Dishwasher (full) | 12–18 L |
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