Watt-hours to Calories Converter
How to convert watt-hours to calories
calories = watt-hours × 860.42065
To convert watt-hours to calories, multiply the number of watt-hours by 860.42065.
1 Wh = 860.42065 cal
Examples
- The usual airline limit for a lithium battery in carry-on baggage: 100 Wh × 860.42065 = 86,042.065 cal
- 1,000 Wh × 860.42065 = 860,420.65 cal
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.
Watt-hours to calories conversion table
| Watt-hours (Wh) | Calories (cal) |
|---|---|
| 1 Wh | 860.42065 cal |
| 2 Wh | 1,720.8413 cal |
| 5 Wh | 4,302.10325 cal |
| 10 Wh | 8,604.2065 cal |
| 20 Wh | 17,208.413 cal |
| 50 Wh | 43,021.0325 cal |
| 100 Wh | 86,042.065 cal |
| 200 Wh | 172,084.13 cal |
| 250 Wh | 215,105.163 cal |
| 500 Wh | 430,210.325 cal |
| 1,000 Wh | 860,420.65 cal |
| 2,000 Wh | 1,720,841.3 cal |
| 2,500 Wh | 2,151,051.63 cal |
| 5,000 Wh | 4,302,103.25 cal |
| 10,000 Wh | 8,604,206.5 cal |
Unit definitions
- Watt-hour (Wh)
- A watt-hour is the energy used by a 1 watt load running for one hour, exactly 3600 joules. It is used for battery capacities.
- 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.