Calories to Kilowatt-hours Converter
How to convert calories to kilowatt-hours
kilowatt-hours = calories ÷ 860,420.65
To convert calories to kilowatt-hours, divide the number of calories by 860,420.65.
1 cal = 0.00000116222222 kWh
Examples
- One kilocalorie, or one food Calorie: 1,000 cal ÷ 860,420.65 = 0.00116222222 kWh
- 500 cal ÷ 860,420.65 = 0.000581111111 kWh
Good to know
This is the thermochemical calorie, exactly 4.184 J. It is the small calorie: the "Calories" on food labels are kilocalories, 1000 times larger. The International Table calorie (4.1868 J) is slightly different.
Calories to kilowatt-hours conversion table
| Calories (cal) | Kilowatt-hours (kWh) |
|---|---|
| 1 cal | 0.00000116222222 kWh |
| 2 cal | 0.00000232444444 kWh |
| 5 cal | 0.00000581111111 kWh |
| 10 cal | 0.0000116222222 kWh |
| 20 cal | 0.0000232444444 kWh |
| 50 cal | 0.0000581111111 kWh |
| 100 cal | 0.000116222222 kWh |
| 200 cal | 0.000232444444 kWh |
| 250 cal | 0.000290555556 kWh |
| 500 cal | 0.000581111111 kWh |
| 1,000 cal | 0.00116222222 kWh |
| 2,000 cal | 0.00232444444 kWh |
| 2,500 cal | 0.00290555556 kWh |
| 5,000 cal | 0.00581111111 kWh |
| 10,000 cal | 0.0116222222 kWh |
Unit definitions
- Calorie (cal)
- The thermochemical calorie is defined as exactly 4.184 joules, roughly the energy needed to heat one gram of water by one degree Celsius.
- Kilowatt-hour (kWh)
- A kilowatt-hour is the energy used by a 1 kilowatt load running for one hour, exactly 3,600,000 joules. It is the unit on electricity bills.