Add daily activities for a one-person home
A person living alone wants to compare the water used for a shower with the water used by the toilet. Enter each activity separately, then add the modeled volumes.
Open CalculatorInputs and calculation
| Tool input | Value |
|---|---|
| Currency | USD |
| Volume or billing unit | m³ |
| Activity measurement | Flow over time |
| Flow (L/min) | 7 |
| Minutes per occurrence | 6 |
| Occurrences per person per day | 1 |
| People (1 for shared use) | 1 |
| Days or equivalent sessions | 30 |
| Price per billing unit (USD) | 3 |
7 L/min × 6 min × 1 × 1 × 30 = 1260 L. Divide by 1,000 for m³ and multiply by 3 for USD 3.78.
Tool result · USD 3.78
| Tool input | Value |
|---|---|
| Currency | USD |
| Volume or billing unit | m³ |
| Activity measurement | Fixed volume per event |
| Liters per event | 5 |
| Occurrences per person per day | 4 |
| People (1 for shared use) | 1 |
| Days or equivalent sessions | 30 |
| Price per billing unit (USD) | 3 |
5 L per event × 4 × 1 × 30 = 600 L. Divide by 1,000 for m³ and multiply by 3 for USD 1.80.
Tool result · USD 1.80
| Tool input | Value |
|---|---|
| Currency | USD |
| Volume or billing unit | m³ |
| Activity measurement | Flow over time |
| Flow (L/min) | 7 |
| Minutes per occurrence | 4 |
| Occurrences per person per day | 1 |
| People (1 for shared use) | 1 |
| Days or equivalent sessions | 30 |
| Price per billing unit (USD) | 3 |
7 L/min × 4 min × 1 × 1 × 30 = 840 L. Divide by 1,000 for m³ and multiply by 3 for USD 2.52.
Tool result · USD 2.52
What the comparison shows
The two baseline activities sum to 1,860 L and 5.58. A shorter shower cuts that partial total to 1,440 L and 4.32.
Assumptions and limits
This is a partial indoor estimate. Add laundry, cooking, taps and other uses separately for a broader household total.