Appliance electricity cost
How much does a gaming pc cost to run?
This worked example uses 450 W, 4 hours on each use day and 300 use days per year. Change any of these inputs in the calculator.
Illustrative 25p/kWh electricityAbout £135/year
540 kWh/year · 1.80 kWh per use day
Electricity-price sensitivity
| Electricity price | Energy/use day | Annual energy | Annual cost |
|---|---|---|---|
| 15p/kWh | 1.80 kWh/day when used | 540 kWh/year | £81/yr |
| 25p/kWh | 1.80 kWh/day when used | 540 kWh/year | £135/yr |
| 35p/kWh | 1.80 kWh/day when used | 540 kWh/year | £189/yr |
Important assumption
Actual gaming-system draw varies with CPU, GPU, display settings and workload. 450 W is an illustrative whole-PC average while gaming.
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.