Updated June 25, 2026
Gaming PC Electricity Cost Calculator
Calculate how much your gaming PC costs to run per session, month, and year based on real power draw.
Live calculator
Calculate your actual running cost
Running this gaming pc for 4 hours a day, 7 days a week uses about 54.6 kWh each month.
Quick answer
How much does a gaming pc cost to run?
A 450 W gaming pc used for 4 hours a day, 7 days a week, consumes about 54.6 kWh per month. At $0.30 per kWh, that is approximately $16.38 per month. Replace these example figures with the wattage and electricity rate from your appliance and bill.
What changes the real running cost?
A gaming PC rarely uses its power supply's full rated capacity. The best estimate comes from measured wall power during the games or workloads you use most.
Include the monitor wattage for a complete setup estimate. A 750 W power supply does not mean the PC continuously consumes 750 W.
Example gaming pc costs
These examples use 450 W for 4 hours a day and 7 days per week.
| Electricity rate | Per hour | Per month | Per year |
|---|---|---|---|
| $0.15 / kWh | $0.07 | $8.19 | $98.28 |
| $0.25 / kWh | $0.11 | $13.65 | $163.80 |
| $0.35 / kWh | $0.16 | $19.11 | $229.32 |
Ways to reduce the cost
Start with changes that reduce active runtime without compromising safety or the job the appliance needs to do.
- Cap frame rates when extra frames are not useful.
- Use sleep mode during breaks.
- Measure actual wall power with a plug-in meter.
Estimate only. Actual consumption varies by model, setting, condition, temperature, duty cycle, and tariff. Use a plug-in meter or energy-label figure when accuracy matters.