# Convert watt-hour to joule

## What is a watt hour?

The watt belongs to the common metrics and is defined as a joule per second. It reveals the power of a battery or a device. Thus, before purchasing them, it is recommended to check their watt-hours.

First and foremost, the higher this value, the longer the battery will work. For instance, a 100 watt hour one will put out exactly 100 watts during one hour of operation.

This option is also referred to as W*h for short and evaluates power in W over time, namely hours. If your battery is rated at 100 W, it will consume exactly such power per hour and 300 W for three hours.

To find out this value from amp hours, the following calculation is used:

**W*h = Amp hours * Volts**

For instance, a 3-volt battery that produces 2 amperes during one hour has a power of 6 W*h.

## What is a joule?

Joule is a metric that is utilized for the evaluation of work, heat and energetic levels and has international recognition. Its definition tells us that it corresponds to the work done by a 1-newton force, which moves mass for 1 meter in the force’s direction. Therefore, one J equals one N per m or one kg x m² x s-².

It is also applied in electrical area and means the work of the force of an electric field done for 1 second at a 1-volt voltage to keep the stability of a 1-ampere current.

The term was introduced at the Second International Congress of Electricians, held in the year of Joule's death and was recognized internationally nine years after this event. From that time, one international joule equals 1.00020 absolute units. Later, this unit was also applied as the standard and belongs to the metrics applicable worldwide.

## How to Convert watt-hour to joule

To convert watt hour to joule, you might employ the next instructions and techniques:

- This modification is established because 1 watt equals 1 joule per second, and there are 3,600 sec in an h. Accordingly, to transform from watt hour to j, bear the numeral of wth by 3,600: the instructions for the watt-hour to joule transformation are J = Wh×3,600.
- For illustration, 2.5 wt-h and desire to transform watt hour to joule: J= 9,000 J.

This transformation is typically employed when performing with electrical power and consumption.

## How many watt-hour in a joule

The dissimilarity among these elements is mostly in their functional usefulness and importance. J functions as the elemental energy unit in scientific methods, while watt-hours find specific applications in calculating cumulative electrical energy, specifically over vast times.

watt-hour (W*h) | joule (J) |
---|---|

0.01 W*h | 36 J |

0.1 W*h | 360 J |

1 W*h | 3600 J |

2 W*h | 7200 J |

3 W*h | 10800 J |

5 W*h | 18000 J |

10 W*h | 36000 J |

20 W*h | 72000 J |

50 W*h | 180000 J |

100 W*h | 360000 J |

1000 W*h | 3600000 J |

### Popular Unit Conversions Energy

### Convert watt-hour to Other Energy Units

- Watt-hour to Attojoule
- Watt-hour to Hartree Energy
- Watt-hour to Microjoule
- Watt-hour to Btu (th)
- Watt-hour to Gigajoule
- Watt-hour to Btu (IT)
- Watt-hour to Electron-volt
- Watt-hour to Inch-ounce
- Watt-hour to Fuel Oil Equivalent @barrel (US)
- Watt-hour to Inch-pound
- Watt-hour to Poundal Foot
- Watt-hour to Kilocalorie (IT)
- Watt-hour to Pound-force Foot
- Watt-hour to Ton-hour (refrigeration)
- Watt-hour to Therm (EC)
- Watt-hour to Kilowatt-hour
- Watt-hour to Gram-force Meter
- Watt-hour to Ounce-force Inch
- Watt-hour to Therm (US)
- Watt-hour to Nanojoule
- Watt-hour to Calorie (nutritional)
- Watt-hour to Foot-pound
- Watt-hour to Kilocalorie (th)
- Watt-hour to Gigaton
- Watt-hour to Kilojoule
- Watt-hour to Kilowatt-second
- Watt-hour to Horsepower (metric) Hour
- Watt-hour to Kilopond Meter
- Watt-hour to Erg
- Watt-hour to Kiloelectron-volt
- Watt-hour to Therm
- Watt-hour to Fuel Oil Equivalent @kiloliter
- Watt-hour to Calorie (IT)
- Watt-hour to Kiloton
- Watt-hour to Horsepower Hour
- Watt-hour to Megaton
- Watt-hour to Rydberg Constant
- Watt-hour to Megajoule
- Watt-hour to Millijoule
- Watt-hour to Dyne Centimeter
- Watt-hour to Kilogram-force Centimeter
- Watt-hour to Newton Meter
- Watt-hour to Watt-second
- Watt-hour to Mega Btu (IT)
- Watt-hour to Megawatt-hour
- Watt-hour to Ton (explosives)
- Watt-hour to Gigawatt-hour
- Watt-hour to Pound-force Inch
- Watt-hour to Calorie (th)
- Watt-hour to Megaelectron-volt
- Watt-hour to Kilogram-force Meter
- Watt-hour to Gram-force Centimeter