Convert Watt-hours (Wh) to Calories (cal)
Enter a value below to convert Watt-hours (Wh) to Calories (cal).
Conversion:
1 Watt-hours (Wh) = 860.4206501 Calories (cal)
How to Convert Watt-hours (Wh) to Calories (cal)
1 wh = 860.4206501 cal
1 cal = 0.0011622222222 wh
Example: convert 15 Watt-hours (Wh) to Calories (cal):
25 wh = 21510.516252 cal
Watt-hours (Wh) to Calories (cal) Conversion Table
| Watt-hours (Wh) | Calories (cal) |
|---|---|
| 0.01 wh | 8.604206501 cal |
| 0.1 wh | 86.04206501 cal |
| 1 wh | 860.4206501 cal |
| 2 wh | 1720.8413002 cal |
| 3 wh | 2581.2619503 cal |
| 5 wh | 4302.1032505 cal |
| 10 wh | 8604.206501 cal |
| 20 wh | 17208.413002 cal |
| 50 wh | 43021.032505 cal |
| 100 wh | 86042.06501 cal |
| 1000 wh | 860420.6501 cal |
Watt-hours (Wh)
Definition
A watt-hour (Wh) is a unit of energy equal to the work done by one watt of power sustained for one hour. It equals 3,600 joules.
History
The watt-hour emerged with the development of electrical power systems in the late 19th century. It provided a practical way to measure and bill for electrical energy consumption.
Current use
Watt-hours are used for small battery capacities (e.g., phone batteries, portable electronics) and as a base unit for kilowatt-hours used in household electricity metering.
Calories (cal)
Definition
A calorie (cal), also known as a small calorie or gram calorie, is defined as the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius. It equals approximately 4.184 joules.
History
The calorie was first defined by French chemist Nicolas Clément in 1824. It was widely used in chemistry and physiology before the joule became the official SI unit of energy.
Current use
Small calories are used in chemistry and physics for heat measurements. In everyday language, 'calorie' often refers to the kilocalorie (kcal) when discussing food energy.