Convert Calories to Watt-Hours
1 cal = 0.00116222 Wh
Conversion Table
| calories (cal) | watt-hours (Wh) |
|---|---|
| 0.5 | 0.000581111 |
| 1 | 0.00116222 |
| 2 | 0.00232444 |
| 5 | 0.00581111 |
| 10 | 0.0116222 |
| 25 | 0.0290556 |
| 50 | 0.0581111 |
| 100 | 0.116222 |
| 250 | 0.290556 |
| 500 | 0.581111 |
| 1000 | 1.1622 |
How to Convert calories to watt-hours
To convert calories to watt-hours, multiply the value by the conversion factor:
For example: 10 cal = 0.0116222 Wh
About calories and watt-hours
The Conversion Formula
To convert calories to watt-hours, multiply the value by the conversion factor: 1 cal = 0.00116222 Wh. For a worked example, suppose you need to convert 25 cal to watt-hours: 25 × 0.00116222 = 0.0290556 Wh. To convert in the opposite direction, divide by 0.00116222, or equivalently multiply by 860.42.
About calories
The calorie (lowercase c) was originally defined as the heat required to raise 1 gram of water by 1°C. It is a tiny unit, often called the 'gram calorie'. It is mostly used in chemistry and physics today, not for food. calories are commonly used in Chemistry experiments, Thermodynamics, Specific heat capacity, and Physics problems.
Heating 1 gram of water by 1°C takes 1 calorie.
About watt-hours
The watt-hour (Wh) is a smaller version of the kilowatt-hour. It is the standard for rating the capacity of batteries in laptops, smartphones, and power banks. Airlines often limit spare batteries to 100Wh for safety. watt-hours are commonly used in Laptop batteries, Power banks, Smartphone specs, and Drone batteries, Portable speakers.
A typical phone battery holds 10-15 Wh.
When Would You Convert calories to watt-hours?
Converting between calories and watt-hours is one of the most common energy conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 cal = 0.00116222 Wh) memorized or bookmarked can save time in professional and everyday contexts alike.