Water Bill Calculator | Monthly and Yearly Estimate
Estimate monthly and yearly water bill from daily usage per person, household size, and price per cubic meter.
Water Bill Estimate
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Estimate Household Water Bill
Enter daily water use per person, household size, and water price per cubic meter to estimate monthly usage, monthly bill, and yearly cost.
Tariffs and Fixed Fees Can Vary
Real bills may include wastewater, tiered pricing, taxes, service fees, minimum charges, or seasonal tariffs. Compare the estimate with your local bill structure.
About This Tool
Water Bill Calculator estimates your monthly water cost based on daily usage, number of occupants, and the water and sewage tariff rates from your provider. It helps identify usage patterns and compare costs before and after efficiency measures.
When to Use It
Use this when trying to reduce your water bill by understanding which activities use the most water, when comparing the impact of a new tariff rate, or when budgeting household utility costs.
How to Use
- Enter the number of people in the household.
- Enter usage amounts for baths, showers, toilet flushes, and appliances.
- Enter the water and sewage rate per cubic metre.
- Click Calculate to see the estimated monthly bill.
Frequently Asked Questions
How much water does a shower use?
A standard shower uses 8 to 12 litres per minute. A 5-minute shower uses roughly 40 to 60 litres compared to 150 to 200 litres for a full bath.
What is the average household water usage?
In the UK the average person uses around 150 litres per day. A household of four uses approximately 600 litres per day or around 18 cubic metres per month.
How can I reduce my water bill?
Fitting low-flow shower heads, fixing dripping taps, running dishwashers and washing machines with full loads, and using a water meter rather than a rateable value charge are effective measures.