Engineering
Power Calculator
Calculate electrical power, mechanical power, etc.
Energy per Day0.800 kWh/dayView results
W
h
$/kWh
Real-time Results
Energy per Day
0.800kWh/day
Monthly Cost
2.88$
Based on 30-day month
Annual Cost
35.04$
Based on 365-day year
Annual Energy
292.00kWh/year
Total energy consumption per year
CO₂ Emissions
116.80kg CO₂/year
Estimated annual CO₂ (~0.4 kg/kWh global avg)
Supported inputs
| Input | Description |
|---|---|
| Device Power (W) (W) | Power consumption of the device |
| Usage per Day (hours) (h) | How many hours the device runs per day |
| Electricity Price ($/kWh) ($/kWh) | Your electricity tariff per kilowatt-hour |
Formula
Energy (kWh) = Power (W) / 1000 × Hours Cost = Energy × Price per kWh CO₂ ≈ Energy × 0.4 kg/kWh (global avg)
Related Calculators
More calculators selected by category and topic.