Four-person tiered water bill
Four people share a meter. Their 18 m³ statement spans two water price bands, so they want to know how much of the total a reduction in use could change.
Open CalculatorInputs and calculation
| Tool input | Value |
|---|---|
| Currency | USD |
| Utility | Water |
| Volume or billing unit | m³ |
| Metered usage | 18 |
| Tariff type | Tiered rate |
| Cumulative upper limit, price per unit | 10, 2 *, 3 |
| Service fee (USD) | 8 |
| Tax on usage plus service fee (%) | 0 |
10 × 2 + 8 × 3 + 8 = 52.
Tool result · USD 52.00
| Tool input | Value |
|---|---|
| Currency | USD |
| Utility | Water |
| Volume or billing unit | m³ |
| Metered usage | 14 |
| Tariff type | Tiered rate |
| Cumulative upper limit, price per unit | 10, 2 *, 3 |
| Service fee (USD) | 8 |
| Tax on usage plus service fee (%) | 0 |
10 × 2 + 4 × 3 + 8 = 40.
Tool result · USD 40.00
What the comparison shows
The first block and service fee account for 28 in both cases. All four avoided cubic meters come out of the higher block.
Assumptions and limits
The sample uses cumulative boundaries and a single service fee. Read the supplier schedule for seasonal or sewer tiers.
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