Joules conversion

Use the search box to find your required metric converter

Joules

Abbreviation/Symbol:

  • J

Unit of:

  • Energy and power

Worldwide use:

  • Widely used in energy measurement

Definition:

One Joule is 1 Newton Metre, ie the work done or energy transfered to an object when a one Newton force acts on it over one metre. It can also be defined as the heat energy dissipated by a current of one ampere passing through a one Ohm resistor for one second

Origin:

The Joule is named after James Prescott Joule, an English physicist and brewer. Joule studied heat, and discovered the relationship between heat and mechanical work

Common references:

  • One joule is approximately the ammount of electrical energy needed to light a 1 watt LED for 1 s. A person at rest typically generates about 60 joules of heat per minute.

Usage context:

commonly used in design and engineering

Component units:

  • Often subdivided into milli and microjoules

Multiples:

  • There are 1,000 joules in a Kilojoule , 1,000,000 in a Megajoule, etc.