Calorie (nutritional) to Watt-hour Conversion
Convert between Calorie (nutritional) and Watt-hour quickly and accurately.
How to Convert Calorie (nutritional) to Watt-hour
Conversion Formula
Example
Convert 15 cal to W⋅h:
Unit Information
Learn about the energy units you're converting between
Calorie (nutritional)
cal
Definition
A nutritional calorie (symbol: cal) is a unit of energy used in nutrition, equal to 4,186.8 joules. It represents the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius.
History/Origin
The calorie was originally defined in the 19th century for measuring heat energy. The nutritional calorie became standardized for food labeling and remains widely used in the United States for dietary energy measurements.
Current Use
Nutritional calories are used in food labeling in the United States, dietary planning and nutrition counseling, exercise and fitness tracking, weight management programs, and metabolic research in health and medicine.
Multiplier
4186.8
Offset
0
Watt-hour
W⋅h
Definition
A watt-hour (symbol: Wh) is a unit of energy equal to the amount of energy consumed by a 1-watt device running for one hour. It equals 3,600 joules and is commonly used for small electrical devices and batteries.
History/Origin
The watt-hour was introduced alongside the kilowatt-hour for measuring smaller amounts of electrical energy. It became important with the development of portable electronic devices and battery-powered systems.
Current Use
Watt-hours are used for measuring battery capacity in portable devices, calculating energy consumption of small electrical appliances, monitoring energy usage in electronics, and determining battery life in mobile devices.
Multiplier
3600
Offset
0
Calorie (nutritional) to Watt-hour Conversion Table
| Calorie (nutritional) [cal] | Watt-hour [W⋅h] |
|---|---|
| 1 cal | 1.163 W⋅h |
| 10 cal | 11.63 W⋅h |
| 25 cal | 29.075 W⋅h |
| 50 cal | 58.15 W⋅h |
| 100 cal | 116.3 W⋅h |
| 0 cal | 0E+0 W⋅h |
| -10 cal | -11.63 W⋅h |
| -40 cal | -46.52 W⋅h |
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