Convert calories to watt-hours quickly and accurately using this free online converter
Used in nutrition labels, physics, and electricity consumption.
💡 Calories (kcal) are used in food; joules in science; kWh in electricity.
Wh = cal × 0.00116222
Example: 1 cal × 0.00116222 = 0.00116222 Wh
Use kcal for food; kWh for energy consumption; joules for science.
Common uses: nutrition, electricity bills, and scientific calculations.
How do I convert cal to Wh?
Multiply the value in Calories by 0.00116222. For example: 10 cal = 0.011622 Wh.
When should I use Watt-hours instead of Calories?
Use kcal for food; kWh for energy consumption; joules for science.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Calories (cal) | Watt-hours (Wh) |
|---|---|
| 1 cal | 0.00116222 Wh |
| 10 cal | 0.011622 Wh |
| 50 cal | 0.058111 Wh |
| 100 cal | 0.116222 Wh |
| 250 cal | 0.290556 Wh |
| 500 cal | 0.581111 Wh |
| 1000 cal | 1.1622 Wh |
| 2000 cal | 2.3244 Wh |