= 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 therm-US

joules to cubic-foot-of-atmosphere

joules to tons-of-TNT

joules to megajoules

calories to hartree

calories to kilojoules

calories to horsepower-hour

calories to joules

therm-US to hartree

cubic-foot-of-atmosphere to kilojoules

tons-of-TNT to horsepower-hour

megajoules to joules

joules to horsepower-hour

rydberg to kilojoules

ergs to hartree

kilojoules to megajoules

joules to cubic-foot-of-atmosphere

joules to tons-of-TNT

joules to megajoules

calories to hartree

calories to kilojoules

calories to horsepower-hour

calories to joules

therm-US to hartree

cubic-foot-of-atmosphere to kilojoules

tons-of-TNT to horsepower-hour

megajoules to joules

joules to horsepower-hour

rydberg to kilojoules

ergs to hartree

kilojoules to megajoules

62 joules to calories

190 joules to calories

180 joules to calories

2400 joules to calories

72000 joules to calories

1700 joules to calories

281000 joules to calories

23980 joules to calories

545 joules to calories

3565 joules to calories

7676 joules to calories

20098 joules to calories

87343 joules to calories

255900 joules to calories

666000000 joules to calories

2028000000000 joules to calories

190 joules to calories

180 joules to calories

2400 joules to calories

72000 joules to calories

1700 joules to calories

281000 joules to calories

23980 joules to calories

545 joules to calories

3565 joules to calories

7676 joules to calories

20098 joules to calories

87343 joules to calories

255900 joules to calories

666000000 joules to calories

2028000000000 joules to calories