Calories to Watt-hours Converter
Convert cal to Wh instantly. 1 cal = 0.001162222222 Wh.
Conversion Formula
Wh = cal × 0.001162222222
Example
25 cal × 0.001162222222 = 0.02905555556 Wh
Convert the other way: Watt-hours to Calories →
Calories to Watt-hours Conversion Table
| Calories (cal) | Watt-hours (Wh) |
|---|---|
| 0.1 | 0.000116222222 |
| 0.5 | 0.000581111111 |
| 1 | 0.001162222222 |
| 2 | 0.002324444444 |
| 5 | 0.005811111111 |
| 10 | 0.01162222222 |
| 20 | 0.02324444444 |
| 25 | 0.02905555556 |
| 50 | 0.05811111111 |
| 100 | 0.1162222222 |
| 500 | 0.5811111111 |
| 1,000 | 1.162222222 |
About These Units
- Calories (cal)
- The thermochemical calorie, exactly 4.184 J, roughly the energy that warms 1 g of water by 1 °C. Chemistry texts use this small calorie, which is one thousandth of the food Calorie on labels.
- Watt-hours (Wh)
- Exactly 3,600 joules, the energy delivered by one watt for one hour. Watt-hours rate phone power banks and laptop batteries, and airlines set their lithium battery carry-on limits in this unit.
Frequently Asked Questions
How many Wh are in 1 cal?
1 cal equals 0.001162222222 Wh.
How do I convert Calories to Watt-hours?
Multiply your Calories value by 0.001162222222. For example, 25 cal × 0.001162222222 = 0.02905555556 Wh.
How many cal are in 1 Wh?
1 Wh equals 860.4206501 cal.