Electricity Cost Calculator
Calculate how much your electricity costs per hour, day, month and year.
Your electricity cost
Find this on your bill or smart meter.
Example rate shown — replace it with the unit rate on your bill.
Example value — check your bill.
Estimated electricity cost
£2.50per day
8 kWh used, £2.00 energy + £0.50 standing charge
| Period | Used | Energy | Standing | Total |
|---|---|---|---|---|
| Hour | 0.333 kWh | £0.08 | £0.02 | £0.10 |
| Day | 8 kWh | £2.00 | £0.50 | £2.50 |
| Week | 56 kWh | £14.00 | £3.50 | £17.50 |
| Month | 243 kWh | £60.83 | £15.21 | £76.04 |
| Year | 2,920 kWh | £730.00 | £182.50 | £912.50 |
Results are estimates. Your actual bill depends on your tariff, meter readings and how you use electricity.
Quick appliance cost calculator
Pick an appliance, then adjust the example figures to match yours.
Example wattage — models vary, so check your appliance's label.
e.g. 0.25 = 15 min
0 to 7
Example rate — enter your own tariff.
Estimated cost to run a kettle
£0.15per day used
Uses 0.6 kWh on each day it's used (3,000 W × 0.2 h).
How it works: cost = power (kW) × hours used × price per kWh. Standing charges aren't included because you pay them whether or not the appliance is on.
Estimates only. Real consumption depends on the model, settings and how the appliance is used.
More electricity calculators
- Home Electricity Cost CalculatorEstimate your household costs
- Appliance Electricity Cost CalculatorRunning cost from watts and hours
- Electricity Usage CalculatorConvert watts and hours to kWh
- Electricity Cost Per kWhWhat each kWh costs you
- Electricity Cost Per DayDaily cost with standing charge
- Electricity Cost Per MonthMonthly cost estimate
- Electricity Cost Per YearAnnual cost estimate
- kWh Cost CalculatorPrice any amount of electricity
How your electricity cost is calculated
Cost = electricity used (kWh) × price per kWh + standing charge
Your supplier charges a unit rate for each kWh you use and a fixed daily standing charge. Find both on your bill or app, enter them above and the calculator does the rest.
New to this? Read what a kWh is or how to calculate your electricity costs.
Appliance running costs
See what common household appliances cost to run on your tariff.
- Washing machine electricity cost
- Tumble dryer electricity cost
- Dishwasher electricity cost
- TV electricity cost
- Electric shower electricity cost
- Electric heater electricity cost
- Kettle electricity cost
- Electric oven electricity cost
- Microwave electricity cost
- Fridge electricity cost
- Freezer electricity cost
- Gaming PC electricity cost
- Computer electricity cost
- Dehumidifier electricity cost
- Air conditioner electricity cost
Guides
- How to Calculate Your Electricity CostsThe three numbers you need, and how to put them together.
- What Is a kWh?The unit your bill uses, explained without the jargon.
- How Much Electricity Does a Home Use?Typical figures, and why your home may be different.
- How to Calculate Appliance Running CostsFrom watts on the label to pounds per year.
- Why Electricity Bills Can VarySeasons, tariffs, estimates and more.
- How to Reduce Electricity Usage at HomePractical changes that make the biggest difference.