Watt-hour to Joule Conversion
Convert between Watt-hour and Joule quickly and accurately.
How to Convert Watt-hour to Joule
Conversion Formula
Example
Convert 15 W⋅h to J:
Unit Information
Learn about the energy units you're converting between
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
Joule
J
Definition
The joule (symbol: J) is the SI base unit of energy, work, and heat. It is defined as the work done when a force of one newton moves an object one meter in the direction of the force. One joule equals one newton-meter or one watt-second.
History/Origin
The joule was named after James Prescott Joule (1818-1889), an English physicist who established the mechanical equivalent of heat. It was officially adopted as the SI unit of energy in 1948, replacing the calorie in scientific contexts.
Current Use
Joules are used universally in physics, engineering, and chemistry for measuring energy, work, and heat. Applications include electrical energy calculations, mechanical work, thermal energy, and energy efficiency measurements in all scientific and industrial fields.
Multiplier
1
Offset
0
Watt-hour to Joule Conversion Table
| Watt-hour [W⋅h] | Joule [J] |
|---|---|
| 1 W⋅h | 3600 J |
| 10 W⋅h | 36000 J |
| 25 W⋅h | 90000 J |
| 50 W⋅h | 180000 J |
| 100 W⋅h | 360000 J |
| 0 W⋅h | 0E+0 J |
| -10 W⋅h | -36000 J |
| -40 W⋅h | -144000 J |
Related Conversions
Explore more Energy conversion options
Watt-hour to Joule
Quick conversion
Watt-hour to Kilojoule
Quick conversion
Watt-hour to Kilowatt-hour
Quick conversion
Watt-hour to Calorie (nutritional)
Quick conversion
Watt-hour to Horsepower (metric) hour
Quick conversion
Watt-hour to Btu (IT)
Quick conversion
Watt-hour to Btu (th)
Quick conversion
Watt-hour to Gigajoule
Quick conversion
Watt-hour to Megajoule
Quick conversion
Watt-hour to Millijoule
Quick conversion
Watt-hour to Microjoule
Quick conversion
Watt-hour to Nanojoule
Quick conversion
Watt-hour to Attojoule
Quick conversion
Watt-hour to Megaelectron-volt
Quick conversion
Watt-hour to Kiloelectron-volt
Quick conversion
Watt-hour to Electron-volt
Quick conversion
Watt-hour to Erg
Quick conversion
Watt-hour to Gigawatt-hour
Quick conversion
Watt-hour to Megawatt-hour
Quick conversion
Watt-hour to Kilowatt-second
Quick conversion
Watt-hour to Watt-second
Quick conversion
Watt-hour to Newton meter
Quick conversion
Watt-hour to Horsepower hour
Quick conversion
Watt-hour to Kilocalorie (IT)
Quick conversion
Watt-hour to Kilocalorie (th)
Quick conversion
Watt-hour to Calorie (IT)
Quick conversion
Watt-hour to Calorie (th)
Quick conversion
Watt-hour to Mega Btu (IT)
Quick conversion
Watt-hour to Ton-hour (refrigeration)
Quick conversion
Watt-hour to Fuel oil equivalent @kiloliter
Quick conversion
Watt-hour to Fuel oil equivalent @barrel (US)
Quick conversion
Watt-hour to Gigaton
Quick conversion
Watt-hour to Megaton
Quick conversion
Watt-hour to Kiloton
Quick conversion
Watt-hour to Ton (explosives)
Quick conversion
Watt-hour to Dyne centimeter
Quick conversion
Watt-hour to Gram-force meter
Quick conversion
Watt-hour to Gram-force centimeter
Quick conversion
Watt-hour to Kilogram-force centimeter
Quick conversion
Watt-hour to Kilogram-force meter
Quick conversion
Watt-hour to Kilopond meter
Quick conversion
Watt-hour to Pound-force foot
Quick conversion
Watt-hour to Pound-force inch
Quick conversion
Watt-hour to Ounce-force inch
Quick conversion
Watt-hour to Foot-pound
Quick conversion
Watt-hour to Inch-pound
Quick conversion
Watt-hour to Inch-ounce
Quick conversion
Watt-hour to Poundal foot
Quick conversion
Watt-hour to Therm
Quick conversion
Watt-hour to Therm (EC)
Quick conversion
Watt-hour to Therm (US)
Quick conversion
Watt-hour to Hartree energy
Quick conversion
Watt-hour to Rydberg constant
Quick conversion