Estimate combined household electricity, gas, and water bills from your region and household size. Use it for a monthly utility snapshot rather than a meter-reading bill check for a single fuel.
Total cost per month:
£201.66
Total cost per year:
£2,419.90
| Per month | Per year | |
|---|---|---|
| Electricity | £78.96 | £947.47 |
| Gas | £67.50 | £810.03 |
| Water | £55.20 | £662.40 |
| Total | £201.66 | £2,419.90 |
Typical household energy usage
The table below shows the average usage for a household according to Ofgem.
| 1-2 people | 2-3 people | 4-5 people | |
|---|---|---|---|
| Electricity (kWh) | 1,800 | 2,700 | 4,100 |
| Gas (kWh) | 7,500 | 11,500 | 17,000 |
- How does this calculator estimate my bills?
- It uses the region you select in Select Region, along with the Ofgem price cap tariff rates and the calculator's tariff inputs, to estimate your gas, electricity, and water costs in the results.
- How accurate are the estimates?
- Our calculator provides an estimate based on the information you input and average UK utility rates. However, actual bills may vary depending on your specific provider, tariff, and usage patterns.
- Can I compare different energy suppliers?
- While our calculator isn't designed to compare providers directly, you can use it to estimate your bills with different tariff rates. Open the tariff editor in the calculator to compare potential costs between providers.
- Where do the tariff rates for each region come from?
- The standing charges and unit rates used in Select Region and the tariff inputs are sourced from Ofgem's energy price cap by region. These rates are accurate for the period between January 2026 and March 2026.
- How is the water bill calculated?
- The water bill is calculated using average charges from Southern Water, based on the number of people residing in a property. This method estimates water usage and costs according to household size, then includes it in the results. Figures are based on charges for the year 2022 to 2023.
- How often are the tariff rates updated?
- Ofgem reviews the energy price cap quarterly. The rates in this calculator are updated to reflect each new cap period. The current rates cover January 2026 to March 2026.
- How can I reduce my utility bills?
- Common approaches include improving energy efficiency, switching to a cheaper tariff, and reducing usage during peak times. The Electricity Cost Calculator can show which appliances are consuming the most energy, and the typical household energy usage table gives a quick benchmark.
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