Convert Watt-Hours to Calories
1 Wh = 860.42 cal
Conversion Table
| watt-hours (Wh) | calories (cal) |
|---|---|
| 0.5 | 430.21 |
| 1 | 860.42 |
| 2 | 1720.84 |
| 5 | 4302.1 |
| 10 | 8604.21 |
| 25 | 21510.52 |
| 50 | 43021.03 |
| 100 | 86042.07 |
| 250 | 215105.16 |
| 500 | 430210.33 |
| 1000 | 860420.65 |
How to Convert watt-hours to calories
To convert watt-hours to calories, multiply the value by the conversion factor:
For example: 10 Wh = 8604.21 cal
About watt-hours and calories
The Conversion Formula
To convert watt-hours to calories, multiply the value by the conversion factor: 1 Wh = 860.42 cal. For a worked example, suppose you need to convert 25 Wh to calories: 25 × 860.42 = 21510.52 cal. To convert in the opposite direction, divide by 860.42, or equivalently multiply by 0.00116222.
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.
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.
When Would You Convert watt-hours to calories?
Converting between watt-hours and calories 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 Wh = 860.42 cal) memorized or bookmarked can save time in professional and everyday contexts alike.