Convert Wh to calories
Watt hours to calories. Enter a value to convert, or use the Wh to calories chart further down the page.
1 watt hour equals 860.4206501 calories. Going the other way, 1 calorie = 0.001162222222 watt hours.
How to convert Wh to calories
To convert watt hours to calories, multiply the watt hour value by 860.4206501. You can also divide by 0.001162222222 to get the same answer.
cal = Wh × 860.4206501
Worked example
Convert 15 Wh to calories:
15 Wh = 12,906.30975 cal
Wh to calories conversion chart
Use this Wh to calories table for quick reference without typing anything.
| watt hours (Wh) | calories (cal) |
|---|---|
| 0.01 Wh | 8.604206501 cal |
| 0.1 Wh | 86.04206501 cal |
| 1 Wh | 860.4206501 cal |
| 2 Wh | 1,720.8413 cal |
| 3 Wh | 2,581.26195 cal |
| 5 Wh | 4,302.10325 cal |
| 10 Wh | 8,604.206501 cal |
| 20 Wh | 17,208.413 cal |
| 50 Wh | 43,021.0325 cal |
| 100 Wh | 86,042.06501 cal |
| 1,000 Wh | 860,420.6501 cal |
What is a watt hour?
A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.
What is a calorie?
The thermochemical calorie is defined as exactly 4.184 joules. Note that the “calories” on food labels are actually kilocalories.
Frequently asked questions
How many calories are in a watt hour?
1 Wh equals 860.4206501 calories. Going the other way, 1 calories is 0.001162222222 Wh.
How do you convert Wh to calories?
To convert watt hours to calories, multiply the watt hour value by 860.4206501. You can also divide by 0.001162222222 to get the same answer.
What is 10 Wh in calories?
10 Wh equals 8,604.206501 calories. The conversion chart on this page lists the other values people look up most often.
Related energy conversions
Convert Wh to other units
Convert other units to calories
- joules to calories
- kilojoules to calories
- kilocalories to calories
- kWh to calories
- BTU to calories
- foot pounds to calories
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