Home Energy Cost Calculator
Calculate your estimated annual energy costs based on property size, appliances, and fuel prices.
UK price cap (Mar 2026): 24.5p
Per Day
£14.29
Per Week
£100.01
Per Month
£433.04
Per Year
£5200.47
Annual kWh
21226
Add Common Appliances
Your Appliances
| Appliance | Wattage (W) | Hours/Week | Daily Cost | Monthly Cost | Annual Cost | Action |
|---|---|---|---|---|---|---|
| £8.40 | £254.60 | £3057.60 | ||||
| £1.05 | £31.83 | £382.20 | ||||
| p28.0 | £8.49 | £101.92 | ||||
| p84.0 | £25.46 | £305.76 | ||||
| p88.2 | £26.73 | £321.05 | ||||
| p88.2 | £26.73 | £321.05 | ||||
| p14.0 | £4.24 | £50.96 | ||||
| p10.5 | £3.18 | £38.22 | ||||
| p12.6 | £3.82 | £45.86 | ||||
| p14.7 | £4.46 | £53.51 | ||||
| p21.0 | £6.37 | £76.44 | ||||
| p49.0 | £14.85 | £178.36 | ||||
| p73.5 | £22.28 | £267.54 |
Cost Breakdown
Annual kWh: 21226
Average daily: 58.2 kWh
💡 Money-Saving Tips
- Switch to LED bulbs (save 75% on lighting)
- Use eco-modes on appliances (10-20% saving)
- Turn off standby features (save 5-10%)
- Use timer-controlled heating/water
- Run full loads in washing machines/dishwashers
- Close doors when heating individual rooms
- Unplug chargers when not in use
- Use air fryer instead of oven (30% less energy)
- Insulate hot water pipes (reduce heat loss)
- Install smart thermostat (auto optimization)
Top Energy Consumers
Central Heating (30kW)
12480 kWh/year (59% of total)
£3057.60
Hot Water (immersion)
1560 kWh/year (7% of total)
£382.20
Fridge (continuous)
1310 kWh/year (6% of total)
£321.05
Freezer (continuous)
1310 kWh/year (6% of total)
£321.05
Hob
1248 kWh/year (6% of total)
£305.76
EV Charger (home)
1092 kWh/year (5% of total)
£267.54
Lighting (20 bulbs)
728 kWh/year (3% of total)
£178.36
Oven
416 kWh/year (2% of total)
£101.92
Typical Appliance Wattages
High Power (2000+W)
- Oven: 2000W
- Hob: 3000W
- Tumble Dryer: 3000W
- Shower (Electric): 8000W
- EV Charger: 7000W
Medium Power (500-2000W)
- Washing Machine: 2000W
- Dishwasher: 1800W
- Microwave: 1000W
- Kettle: 3000W
- Hair Dryer: 1800W
Low Power (under 500W)
- TV: 100-120W
- Computer: 200-400W
- Laptop: 50-100W
- Fridge: 150W
- Freezer: 150W
Whole-House Energy in One List
This calculator runs a long appliance list at once: heating, hot water, oven, hob, white goods, electronics, lighting and EV charger. The defaults model a typical family home and produce an annual electricity figure of around £2,000 to £3,500 at 28p/kWh, depending on heating type. Each appliance has wattage and weekly hours; the maths is wattage divided by 1,000, multiplied by hours, multiplied by the unit rate.
The big drivers are heating (often 30 to 50 percent of the total in homes with electric heating), hot water (10 to 20 percent), white goods that run continuously (fridge and freezer combined, around 8 percent) and the EV charger if you have one (15 to 30 percent for a typical 8,000 km/year EV). Knock the heating hours back and the total drops fast; cycle the EV charger to off-peak overnight rates and the per-kWh cost halves.
Standing Charges and Tariff Caps Are Separate
The calculator shows usage cost only. On top of that, every UK property pays a standing charge of around 60p per day for electricity (£220 a year) regardless of usage. So a household using 4,000 kWh of electricity at 28p (£1,120) pays £1,340 in total once the standing charge is added. The Ofgem price cap moves quarterly and varies slightly by region.
Time-of-use tariffs (Octopus Agile, Economy 7) shift the maths if you can move heavy loads to off-peak. Charging an EV on Economy 7 night rate (around 10p/kWh) instead of standard (28p) saves around £400 a year on a 4,000 kWh annual EV draw. For appliance-by-appliance breakdowns rather than the whole-house view, [Energy Cost Calculator](/energy-cost-calculator) handles individual appliance running costs.
Frequently Asked Questions
What is the average UK household energy bill in 2026?
Around £1,800 to £2,400 a year combined gas and electricity for a typical 3-bed semi, depending on insulation, heating habits and which Ofgem cap period you are in. Electric-heated homes run higher (£2,500 to £4,000). All-gas heated homes with modern condensing boilers often come in below £1,800.
How can I cut my energy bill?
In rough order of impact: turn the thermostat down by 1 degree (saves around 10 percent of heating cost), shorter showers (especially with electric showers), full loads in dishwasher and washing machine, unplug standby appliances, switch lights to LED if not already, and use the air fryer for small portions instead of the oven.
Is gas or electricity cheaper in the UK?
Per kWh, gas is much cheaper (around 6p/kWh) than electricity (around 28p/kWh) in 2026. But gas boilers are around 90 percent efficient, while electric heat pumps are 280 to 400 percent efficient (each kWh of electricity moves 2.8 to 4 kWh of heat). On running cost a heat pump in a well-insulated home is competitive with gas, while resistance electric heating is roughly four times the cost of gas.
How accurate is this energy cost estimate?
Within about 15 percent for plug-in appliances and lighting. Less accurate for thermostat-controlled heating where actual run hours depend on weather and insulation. For the most accurate read, take a baseline meter reading, run the house for a month, take a second reading, and compare with the calculator's predicted total.
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