Joule to Cal conversion

With the tool on the page, you can automatically translate between Joule and cal weight measurements. Your conversion will work automatically based on the joule cal conversion formula. To perform the conversion, simply enter the value you want in the box below and press the “Convert” button. The result will appear immediately below.

Joule to Cal conversion

  • Energy in calories
  • Calorie Unit Type
  • Conversion result
  • J

How to convert from joule to cal

Things to consider when choosing a calorie unit type:

  • Small calorie (cal) is the energy required to raise 1 gram of water by 1°C at 1 atmosphere of pressure.
  • Large calorie (Cal) is the energy required to raise 1 kg of water at 1 atmosphere pressure by 1°C.
  • Large calorie is also called food calorie and is used as a unit of food energy.

Joule to thermochemical calorie

1 calth = 4.184 J

Calories from joules to 15°C

1 cal15 = 4.1855 J

Joules to large/food calories

1 Cal = 4.184 kJ = 4184 J

Joule cal conversion formula

The energy E (calth) in a thermochemical calorie is equal to the energy in Joules E (J) divided by 4.184:

E (cal) = E (J) / 4.184

Energy in 15 °C calorie E (cal15) is equal to energy in Joules E (J) divided by 4.1855:

E (cal15) = E (J) / 4.1855

Energy E (Cal) in large/food calories equals energy in joules E (J) divided by 4184:

E (Stay) = E (J) / 4184


Converting 600 joules to thermochemical calories:

E (cal) = 600J / 4.184 = 143.4 calth

Converting 600 joules to 15°C calories:

E (cal15) = 600J / 4.1855 = 143.352 cal15

Convert 600 joules into food calories.

E (Cal) = 600J / 4184 = 0.1434 Cal

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