Calorie to Watt-Hour Converter
Convert calorie to watt-hour instantly.
Standard energy units
joule 418.4
kilojoule 0.4184
kilocalorie 0.1
watt-hour 0.1162
kilowatt-hour 0.0001
BTU 0.3966
Fun comparisons
apples eaten 🍎~ Less than 0.01
hours of 100W bulb 💡~ Less than 0.01
marathons run 🏃~ Less than 0.01
full car tanks of fuel ⛽~ Less than 0.01
How to convert calorie to watt-hour
Enter your energy value in calorie and see the result in watt-hour instantly. Key reference points: 1 food Calorie equals 1 kcal (4.184 kJ), and 1 kilowatt-hour equals 3600 kJ (860 kcal).
Calorie is the small chemistry energy unit; watt-hour measures electrical energy for appliances and batteries. One watt-hour equals approximately 860 calories.
Need the opposite direction? Convert watt-hour to calorie just as easily, or explore all our energy conversions.
Common calorie to watt-hour conversions
| Calorie (cal) | Watt-Hour (Wh) |
|---|---|
| 1 | 0.00116222 |
| 5 | 0.00581111 |
| 10 | 0.0116222 |
| 25 | 0.0290556 |
| 50 | 0.0581111 |
| 100 | 0.116222 |
| 500 | 0.581111 |
| 1000 | 1.16222 |
Frequently asked questions
1 calorie equals 0.00116222 watt-hour.
Multiply by 0.00116222. For example, 5 cal = 0.00581111 Wh.
3600 calories equals approximately 4.184 watt-hours.
1 watt-hour equals 860.421 calorie.
100 calorie equals 0.116222 watt-hour.