= 0.239005736138 calories

Energy is a property of objects which can be transferred to other objects or converted into different forms. The "ability of a system to perform work" is a common description, but it is misleading because energy is not necessarily available to do work. For instance, in SI units, energy is measured in joules, and one joule is defined "mechanically", being the energy transferred to an object by the mechanical work of moving it a distance of 1 meter against a force of 1 newton. However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient.

In the International System of Units (SI), the unit of energy is the joule, named after James Prescott Joule. It is a derived unit. It is equal to the energy expended (or work done) in applying a force of one newton through a distance of one meter. However energy is also expressed in many other units not part of the SI, such as ergs, calories, British Thermal Units, kilowatt-hours and kilocalories, which require a conversion factor when expressed in SI units.The SI unit of energy rate (energy per unit time) is the watt, which is a joule per second. Thus, one joule is one watt-second, and 3600 joules equal one watt-hour. The CGS energy unit is the erg and the imperial and US customary unit is the foot pound. Other energy units such as the electronvolt, food calorie or thermodynamic kcal, and BTU are used in specific areas of science and commerce.

joules to megajoules

joules to joules

joules to kilojoules

joules to hartree

calories to calories

calories to electron-volt

calories to foot-pound-force

calories to ergs

megajoules to calories

joules to electron-volt

kilojoules to foot-pound-force

hartree to ergs

ergs to foot-pound-force

cubic-foot-of-atmosphere to electron-volt

rydberg to calories

electron-volt to hartree

joules to joules

joules to kilojoules

joules to hartree

calories to calories

calories to electron-volt

calories to foot-pound-force

calories to ergs

megajoules to calories

joules to electron-volt

kilojoules to foot-pound-force

hartree to ergs

ergs to foot-pound-force

cubic-foot-of-atmosphere to electron-volt

rydberg to calories

electron-volt to hartree

55 joules to calories

138 joules to calories

50 joules to calories

1700 joules to calories

7000 joules to calories

1230 joules to calories

288000 joules to calories

20625 joules to calories

774 joules to calories

4268 joules to calories

8035 joules to calories

32570 joules to calories

99481 joules to calories

179903 joules to calories

4946000000 joules to calories

4722000000000 joules to calories

138 joules to calories

50 joules to calories

1700 joules to calories

7000 joules to calories

1230 joules to calories

288000 joules to calories

20625 joules to calories

774 joules to calories

4268 joules to calories

8035 joules to calories

32570 joules to calories

99481 joules to calories

179903 joules to calories

4946000000 joules to calories

4722000000000 joules to calories