# Calorie (IT) conversions

energy conversions » calorie (IT) conversionsThe calorie (IT) conversion selector selects the energy measurement unit to convert to starting from calories (IT) (cal). To make a conversion starting from a unit of energy other than calorie (IT), simply click on the "Reset" button.

## What is calorie (IT)?

The **calorie (IT)** is a unit of energy equal to 4.1868 joules (1 cal = 4.1868 J), the SI derived unit of energy. It is also equal to 0.0041868 kilojoules (kJ), or 4.1868x10-6 megajoules (MJ), or 4.1868x10-9 gigajoules (GJ), or 0.0039683207 British thermal units (IT) (BTU), or 0.0022046226 Celsius heat units (IT) (CHU), or 0.001163 watt hours (Wh) or 1.163x10-6 kilowatt hours (kWh).

The calorie is the energy required to increase the temperature of one gram of water by one degree Celsius (or 1.8 degrees Fahrenheit) at a constant pressure of one atmosphere.

The **calorie definition** varies as follows:

- The calorie (thermochemical) (cal) is equal to 4.184 joules (J)
- The calorie (IT) (cal) is equal to 4.1868 joules (J)
- The calorie (mean) (cal) is equal to about 4.19002 joules (J)
- The calorie (4 °C) (cal) is equal to about 4.2045 joules (J)
- The calorie (15 °C) (cal) is equal to 4.1855 joules (J)
- The calorie (20 °C) (cal) is equal to about 4.1819 joules (J)

*Notes:*

(i) The SI is an abbreviation for the International System of Units

(ii) The IT is an abbreviation for the International [Steam] Table

(iii) The food calorie - used in nutritional contexts only - is equal to 4.184 kilojoules or 1,000 thermochemical calories. The food calorie is also referred to as kilocalorie on the nutrition labels.

*Symbol:*

cal

*Plural:*

calories (IT)

## Calorie (IT) conversions: quick links

A compehensive list with conversions from calories (IT) to other (metric, imperial, or customary) energy measurement units is presented below.

- calorie (IT) to barrel of oil equivalent (cal to BOE)
- calorie (IT) to British thermal unit (59 F)
- calorie (IT) to British thermal unit (IT) (cal to BTU)
- calorie (IT) to calorie (cal to cal)
- calorie (IT) to calorie (15 C) (cal to cal)
- calorie (IT) to Celsius heat unit (IT) (cal to CHU)
- calorie (IT) to cubic foot of natural gas
- calorie (IT) to electron volt (cal to eV)
- calorie (IT) to erg (cal to erg)
- calorie (IT) to foot-pound force (cal to ft lbf)
- calorie (IT) to foot-poundal (cal to ft pdl)
- calorie (IT) to gallon-atmosphere (UK) (cal to gal atm)
- calorie (IT) to gallon-atmosphere (US) (cal to gal atm)
- calorie (IT) to giga-electron volt (cal to GeV)
- calorie (IT) to gigacalorie (cal to Gcal)
- calorie (IT) to gigajoule (cal to GJ)
- calorie (IT) to gigawatt hour (cal to GWh)
- calorie (IT) to Hartree (cal to Ha)
- calorie (IT) to horsepower-hour (cal to hph)
- calorie (IT) to inch-pound force (cal to in lbf)
- calorie (IT) to joule (cal to J)
- calorie (IT) to kilo-electron volt (cal to keV)
- calorie (IT) to kilocalorie (cal to kcal)
- calorie (IT) to kilojoule (cal to kJ)
- calorie (IT) to kilowatt hour (cal to kWh)
- calorie (IT) to liter-atmosphere (cal to L atm)
- calorie (IT) to mega-electron volt (cal to MeV)
- calorie (IT) to megacalorie (cal to Mcal)
- calorie (IT) to megajoule (cal to MJ)
- calorie (IT) to megawatt hour (cal to MWh)
- calorie (IT) to microjoule (cal to μJ)
- calorie (IT) to milli-electron volt (cal to meV)
- calorie (IT) to millijoule (cal to mJ)
- calorie (IT) to nanojoule (cal to nJ)
- calorie (IT) to Newton metre (cal to Nm)
- calorie (IT) to standard cubic centimeter (cal to scc)
- calorie (IT) to standard cubic foot (cal to scf)
- calorie (IT) to standard cubic yard (cal to scy)
- calorie (IT) to tera-electron volt (cal to TeV)
- calorie (IT) to terajoule (cal to TJ)
- calorie (IT) to terawatt hour (cal to TWh)
- calorie (IT) to ton of coal equivalent (cal to TCE)
- calorie (IT) to ton of oil equivalent (cal to TOE)
- calorie (IT) to watt hour (cal to Wh)
- calorie (IT) to watt second (cal to Ws)