The physics
Every appliance's cost is just power (kilowatts) × time (hours) × price (per kWh).
Yearly cost of a 2,000 W heater, 4 h a day at €0.25/kWh
Answer: cost per year = 730.5 € (cost per day 2 €, cost per month 60.88 €, energy per year 2,922 kWh).
What we know
- Appliance power: 2000 W
- Usage per day: 4 hours
- Electricity price: 0.25 €/kWh
Step by step
- Given
- Appliance power = 2000 W, Usage per day = 4 hours, Electricity price = 0.25 €/kWh
- Formula
- Cost = (W / 1000) × hours × price per kWh
- Result
- Cost per year = 730.5 €
All results
| Cost per day | 2 € |
|---|---|
| Cost per month | 60.88 € |
| Cost per year | 730.5 € |
| Energy per year | 2,922 kWh |
Open the electricity cost calculator with these numbers → and change any of them.