Convert kilojoule to joule
kilojoule
Definition: The kilojoule is an SI (International System of Units) derived unit of energy that is equal to 1000 joules. The joule is defined as the amount of energy transferred to an object when a one newton force acts on an object in the direction movement through a distance of one meter.
History/origin: The kilojoule, like other SI derived units, uses SI prefixes to denote multiples or submultiples of the given unit. In this case, the prefix "kilo" is used to express a multiple of 1000.
Current use: In countries that have adopted SI, the kilojoule is widely used as a unit of food energy. In some cases, both kilojoules and kilocalories are displayed, though in countries such as the United States, only kilocalories are shown (often referred to as "Calories") on food labels. Aside from this everyday use, kilojoules are used within scientific contexts around the world.
joule
Definition: A joule (symbol: J) is a derived unit of energy in the International System of Units (SI). It is defined as the energy transferred to an object when a one newton force is applied to the object in the direction of its motion through a distance of one meter. It is also defined as the energy dissipated as heat when a 1 ampere electric current passes through a resistance of one ohm in the course of one second. It has a number of representations both in SI base units as well as other SI units such that:
History/origin: The unit, joule, is named after James Prescott Joule, an English physicist and mathematician who helped develop the Kelvin scale. He also discovered the relationship between heat and mechanical work, leading to the law of conservation of energy, and subsequently, the first law of thermodynamics.
Current use: As an SI derived unit, the joule is used within a variety of scientific contexts. Practical examples of energy measurement using joules include the energy required to lift objects, the energy released when objects fall, the heat required to raise temperature, and the kinetic energy of moving objects.
kilojoule to joule Conversion Table
| kilojoule [kJ] | joule [J] |
|---|---|
| 0.01 kilojoule | 10.00 joule |
| 0.10 kilojoule | 100.00 joule |
| 1 kilojoule | 1000 joule |
| 2 kilojoule | 2000 joule |
| 3 kilojoule | 3000 joule |
| 5 kilojoule | 5000 joule |
| 10 kilojoule | 10000 joule |
| 20 kilojoule | 20000 joule |
| 50 kilojoule | 50000 joule |
| 100 kilojoule | 100000 joule |
| 1000 kilojoule | 1000000 joule |
How to Convert kilojoule to joule
1 kilojoule = 1000 joule
1 joule = 0.001000 kilojoule
Example
Convert 15 kilojoule to joule:
15 kilojoule = 15 × 1000 joule = 15000 joule
