Relation Between Calorie And Joule

Energy is the ability to do work. The energy can be measured using multiple units. Calorie and Joule are the units of energy. The relation between calorie and joule is proportionate. Which implies, any change in Calorie will change its equivalent value in Joules.

Calorie And Joule

The relation between Calorie and Joule can be numerically written as-

1 calorie = 4.2 joules
1 Calorie/kcal = 4.2 kilojoules.

Where,

  • calorie is the unit of energy.
  • Calorie or kilocalorie is the unit of energy = 1000 calorie.
  • Joule is the unit of energy
  • Kilojoule is the unit of energy, = 1000 joules.

Please note that calorie and Calorie are not the same. 1 Calorie = 1000 calories. Sometimes Calorie is often called as kilocalorie. Calorie and calorie both are the units of energy.

Relationship Between Calorie And Joule

The relationship between calorie and joule are proportionate. Which implies, the calorie is directly proportional to the joule. That means-

  • When the value in terms of calorie increases, its corresponding value in joules also increases at a rate of 4.2.
  • When the value in terms of calorie decreases, its corresponding value in joules also decreases at a rate of 4.2.

Refer the table given below for definition, unit, and symbol of calorie and joule in physics and life science.

Definition Symbol
calorie The energy in the form of heat required to warm 1 kilogram of water by 10 C cal
joule Work done (energy transferred) on an object when a force of 1N acts on it and moves it for a distance of 1 m in the direction of the force J

Here, 1 newton is written in short as 1N.

Joule calorie conversion

In, physics, the conversion between two units of energy; calorie to joule and joule to calorie is crucial in solving problems. Scroll down the page for the list of values and their conversion from calorie to joule and joule to calorie.

calorie to Joule

The table given below comprises of some commonly used calorie to joule conversion values –

calorie joule
1 4.184
20 83.68
30 125.52
40 167.36
50 209.2
100 418.4
500 2092
1,000 or 1kcal 4184
5,000 or 5 kcal 20920
10,000 or 10 kcal 41840

Joule to Calorie

The table given below comprises of some commonly used joule to calorie conversion values –

Joule Calorie or Kilocalorie
1 0.000239006
10 0.00239006
20 0.00478011
30 0.00717017
40 0.00956023
50 0.0119503
100 0.0239006
500 0.119503
1000 0.239006
5000 1.195029

Hope you understood the relation between calorie and joule and Joule calorie conversion for any given values in physics.

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