5 min read
2026-03-03
60 W light bulb in 10 hours = 600 Wh = 0.6 kWh. With a tariff of 6 rubles/kWh = 3.6 rubles.
The “calories” on food packages are actually kilocalories. 200 Cal = 200 kcal = 836.8 kJ.
The power of air conditioners is indicated in BTU/h. 12,000 BTU/h ≈ 3.5 kW - for a room of 30–35 m².
This is a convenient connection for converting electrical energy into heat.
| Device | Consumption | Per month (kWh) |
|---|---|---|
| LED lamp | 10 W | 3 |
| Refrigerator | 150 W | 36 |
| Washing machine | 500 W | 20 |
| Electric kettle | 2000 W | 15 |
| Air conditioning | 1000 W | 120 |
See also: Power converter, Temperature converter