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. This implies any change in calories will change its equivalent value in joules.

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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,

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

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

Relationship Between Calorie And Joule

The relationship between calories and joule is proportionate. This implies that the calorie is directly proportional to the joule. That means-

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

Refer to the table given below for the 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 1 N 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 1 N.

Joule-Calorie conversion

In physics, the conversion between two units of energy, calorie to joule and joule to a 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 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 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 value in physics.

Physics Related Topics:

Relation Between Newton And Dyne
Relation Between Ev And Joule
Relation Between Bar And Atm
Relation Between Celsius And Fahrenheit

Frequently Asked Questions – FAQs

Q1

What is heat?

With a body’s temperature increase, the molecules or atoms’ vibrations increase. These vibrations are then transferred from one part of the body to another. The measure of energy with which the molecules vibrate in a system is termed as heat stored in that object.
Q2

What is Joule?

Joule is the SI unit of work or energy. One joule is defined as the amount of work done when a force of one newton acts on an object in the direction of its motion through a distance of one metre.
Q3

What is the relation between power and energy?

The relation between power and energy is that power has energy units divided by time.
The unit of power is Watts.
Unit of energy is Joules.
1 Watt = 1 Joule/1 second.
Q4

Can energy be stored?

Yes, energy can be stored. One efficient way to store energy is in the form of chemical energy in a battery. When connected to a circuit, energy stored in the battery is released to produce electricity. Energy can also be stored in many other ways. Batteries, gasoline, natural gas, food, water towers etc.
Q5

Define one calorie of heat.

One calorie of heat is defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius (or one kelvin).
Test Your Knowledge On Relation Between Calorie And Joule!

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