Energy Unit Converter

Unit of energy in the International System Of Units (SI) is Joule. Joule is the derived unit. Joule formula: 1 J = 1 N · m = 1 kg · m² / s²

One joule is the amount of energy required to perform the following actions (source:wikipedia.org)

• The work done by a force of one newton traveling through a distance of one meter;
• The work required to move an electric charge of one coulomb through an electrical potential difference of one volt; or one coulomb volt, with the symbol C·V;
• The work done to produce power of one watt continuously for one second; or one watt second (compare kilowatt hour), with the symbol W·s. Thus a kilowatt hour is 3,600,000 joules or 3.6 megajoules;
• The kinetic energy of a 2 kg mass moving at a velocity of 1 m/s.

Joule to calorie formula: Based on International Steam Table (1956) 1 calorie is defined to be exactly 4.1868J. Ergo:

1 cal = 4.1868J => N calories = N*4.1868 J
1 J = 0.238846 cal => N joules = N*0.238846 calories.