Appliance electricity cost
How much does a microwave cost to run?
This worked example uses 1,200 W, 0.15 hours on each use day and 365 use days per year. Change any of these inputs in the calculator.
Illustrative 25p/kWh electricityAbout £16/year
66 kWh/year · 0.18 kWh per use day
Electricity-price sensitivity
| Electricity price | Energy/use day | Annual energy | Annual cost |
|---|---|---|---|
| 15p/kWh | 0.18 kWh/day when used | 66 kWh/year | £10/yr |
| 25p/kWh | 0.18 kWh/day when used | 66 kWh/year | £16/yr |
| 35p/kWh | 0.18 kWh/day when used | 66 kWh/year | £23/yr |
Important assumption
Input power can exceed the advertised cooking output. The example assumes nine minutes of daily use.
This is a worked planning estimate, not a measurement of your appliance. A smart plug, energy monitor or manufacturer annual-kWh figure usually gives a better real-world input for cycling appliances.