Watt Hours to Calories Converter
EngineeringJoules, calories, kilowatt-hours and more.
How to convert Watt Hours to Calories
Multiply the watt hours value by 860.421: 1 Wh = 860.421 cal. Going the other way, 1 cal = 0.00116222 Wh, so divide by 860.421 or use the Calories to Watt Hours converter.
About these units
Watt Hours (Wh)
A watt-hour is the energy of one watt sustained for one hour, exactly 3,600 joules. Phone and laptop batteries are rated in watt-hours.
Calories (cal)
The calorie used here is the thermochemical calorie, exactly 4.184 joules, roughly the energy needed to warm one gram of water by one degree Celsius. Food calories are actually kilocalories.
Watt Hours to Calories conversion table
| Watt Hours (Wh) | Calories (cal) |
|---|---|
| 1 Wh | 860.421 cal |
| 2 Wh | 1,720.84 cal |
| 3 Wh | 2,581.26 cal |
| 4 Wh | 3,441.68 cal |
| 5 Wh | 4,302.1 cal |
| 10 Wh | 8,604.21 cal |
| 20 Wh | 17,208.4 cal |
| 25 Wh | 21,510.5 cal |
| 50 Wh | 43,021 cal |
| 100 Wh | 86,042.1 cal |
| 500 Wh | 430,210 cal |
| 1,000 Wh | 860,421 cal |