PC Power Consumption Calculator
Calculate active electrical draw, daily/monthly kWh consumption, and electricity bill costs.
Daily Electricity Cost
€0.46
2.108 kWh / day (9 hrs active)
Monthly Running Cost
€14.11
64.13 kWh / month (average billing cycle)
Annual Electricity Cost
€169.39
769.9 kWh / year total demand
Usage Breakdown & Electricity Rates
Currency:
Hardware Power Draw by State (Watts)
Full 3D rendering & AAA titles
Office apps, coding, YouTube
Desktop idle, music playback
Typical 27" 144Hz monitor is ~35W–50W
Audio DAC, desktop lighting, USB hubs
How It Works
- Calculates kWh: (Watts / 1000) * Daily Hours * 30 days.
Formula & Technical Standard
Monthly Cost = ((Watts * Hours * 30) / 1000) * Rate per kWh
Practical Example
Daily PC Usage
Input: 350W average load, 6 hours/day, $0.18/kWh
Output: 63 kWh/month (~$11.34/month)
Reflects typical mixed usage over a billing cycle.
Frequently Asked Questions
Does my PC always draw the PSU rated wattage?
No. A 750W PSU only draws what hardware components actively demand from the wall.
Related Tools
hardwarePopular
PSU Calculator
Estimate total system wattage and find the optimal Power Supply Unit (PSU) rating for stability.
hardware
PC Hardware Balance Calculator
Evaluate architectural balance between CPU and GPU across resolutions and workloads with transparent, responsible performance guidelines.