Calculate appliance electricity costs from watts and hours or kWh per cycle using your own unit rate. See daily, monthly and yearly costs, then compare what changing your routine could save.
Presets are illustrative, not measured averages. Edit the figures to match your appliance and routine.
£3.04per month, on average
0.4 kWh a day · 146 kWh a year
Based on the same routine for 365 days. Monthly costs are the annual total divided by 12. Costs are rounded to the nearest penny.
Try a different routine and compare the yearly cost.
Watts ÷ 1,000 × hours × your unit rate in pence ÷ 100 gives the cost in pounds. The estimate assumes the entered wattage is drawn throughout that time.
Heaters switch on and off with a thermostat. Fridges and other cycling appliances need measured average consumption for a useful estimate.
kWh per cycle × cycles per week × your unit rate in pence ÷ 100 gives the weekly cost. Programmes and loads affect actual consumption.
Use the label for your chosen programme or a measured figure instead of multiplying maximum power by the entire cycle time.
Standing charges are excluded because running an appliance does not change that daily charge. Use the rate that applies when you run it; calculate peak and off-peak use separately.
Calculate your whole electricity bill →Read the appliance running-cost guide →