Calories (cal) to Kilowatt-hours (kW·h) Conversion
Calories
The calorie (cal) is a unit of energy equal to exactly 4.184 joules, defined as the energy required to raise the temperature of one gram of water by one degree Celsius at 15 °C. This is the thermochemical calorie — distinct from the food calorie (written as Cal or kcal), which is 1,000 times larger. The calorie originated in 19th-century thermodynamics before the joule was established as the SI standard, and persists in chemistry, biology, and food science.
Kilowatt-hours
The kilowatt-hour (kW·h) is a unit of energy equal to exactly 3,600,000 joules (3.6 MJ), defined as the energy consumed by a one-kilowatt device operating for one hour. It is the standard unit on electricity bills worldwide. A typical European household consumes approximately 3,500 kWh per year. One kWh powers a 100-watt bulb for 10 hours, charges an electric vehicle by approximately 5–8 km of driving range, or powers the average laptop for about 10 hours.
| Calories (cal) | Kilowatt-hours (kW·h) |
|---|---|
| 0.1 cal | 0.000000116 kW·h |
| 1 cal | 0.00000116 kW·h |
| 2 cal | 0.00000232 kW·h |
| 3 cal | 0.00000349 kW·h |
| 5 cal | 0.00000581 kW·h |
| 10 cal | 0.0000116 kW·h |
| 20 cal | 0.0000232 kW·h |
| 30 cal | 0.0000349 kW·h |
| 50 cal | 0.0000581 kW·h |
| 100 cal | 0.000116 kW·h |
| 1000 cal | 0.00116 kW·h |
Frequently Asked Questions (FAQ)
How many kilowatt-hours are in 1 calories?
1 calories (cal) is exactly 0.00000116 kilowatt-hours (kW·h).
How do I convert calories to kilowatt-hours?
Multiply the value in calories by 0.00000116 to get the result in kilowatt-hours. Or use the converter above — type any number and see the result instantly.