# Calorie (IT) conversions

The 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.

## About calorie (IT)

The **calorie (IT)** is a unit of energy equal to 4.1868 joules (1 cal (IT) = 4.1868 J), the SI derived unit of energy.

The calorie (IT) is also equal to 0.0041868 kilojoules (kJ), or 4.1868 × 10^{-6} megajoules (MJ), or 4.1868 × 10^{-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 1.163 × 10^{-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 (th) (cal) is equal to 4.184 × 10
^{-6}megajoules - The calorie (IT) (cal) is equal to 4.1868 × 10
^{-6}megajoules - The calorie (mean) (cal) is equal to about 4.19002 × 10
^{-6}megajoules - The calorie (4 °C) (cal) is equal to about 4.2045 × 10
^{-6}megajoules - The calorie (15 °C) (cal) is equal to 4.1855 × 10
^{-6}megajoules - The calorie (20 °C) (cal) is equal to about 4.1819 × 10
^{-6}megajoules

Symbol: cal

Plural: calories (IT)