Convert calories to watt hours
1 cal = 0.00116222 Wh. Change the amount below, or read the formula and the reference table further down.
1 calorie equals
watt hours
1 cal = 0.00116222 Wh
The formula
Calories and watt hours both measure energy from the same zero, so a single multiplier does the job.
Wh = cal × 0.0011622222
Going the other way? Convert watt hours to calories.
Calories to watt hours table
Common values, rounded for reading.
| Calories (cal) | Watt hours (Wh) |
|---|---|
| 1 | 0.001162 |
| 2 | 0.002324 |
| 3 | 0.003487 |
| 4 | 0.004649 |
| 5 | 0.005811 |
| 6 | 0.006973 |
| 7 | 0.008136 |
| 8 | 0.009298 |
| 9 | 0.01046 |
| 10 | 0.011622 |
| 15 | 0.017433 |
| 20 | 0.023244 |
| 25 | 0.029056 |
| 30 | 0.034867 |
| 40 | 0.046489 |
| 50 | 0.058111 |
| 75 | 0.087167 |
| 100 | 0.116222 |
| 250 | 0.290556 |
| 500 | 0.581111 |
| 1,000 | 1.1622 |
Questions people ask
- How many watt hours are in a calorie?
- One calorie equals 0.0011622222 watt hours.
- How do I convert calories to watt hours by hand?
- Multiply the number of calories by 0.0011622222. For a rough check, 0.001 is close enough for most everyday use.
- What is 1 calorie in watt hours?
- 1 calorie is 0.00116222 watt hours.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.