Joule to Calorie Converter (J to cal)

How to Convert Joule to Calorie

Formula: Calorie = Joule × 0.23900574

Example: 1 J = 0.23900574 cal

You can also use the interactive converter above. Simply enter any Joule value and the equivalent Calorie value will appear instantly. Click the ⇄ button to reverse the conversion.

Knowing where Joule and Calorie come from makes the conversion easier to remember. Here is the context, plus a quick FAQ.

Step-by-step example — Convert 1000 J to cal:

What is Joule and Calorie?

A Joule (J) is the SI unit of energy, used as the scientific standard for measuring work and heat.

A Calorie (cal) is a small energy unit originally defined as the heat needed to raise one gram of water by one degree Celsius.

Real World Uses of Joule to Calorie Conversion

• Joule: Commonly used for appearing on nutrition labels in some countries alongside kilojoules.
• Calorie: Commonly used for measuring small amounts of heat energy in chemistry and physics.
• Joule: Commonly used in scientific formulas involving force, heat and electrical energy.
• Calorie: Commonly used in older nutrition science before kilocalories became the everyday standard.

Frequently Asked Questions

What is the formula to convert Joule to Calorie?

The formula is: Calorie = Joule x 0.23900574. Multiply any Joule value by 0.23900574 to get the equivalent in Calorie.

What is 1 Joule in Calorie?

1 J = 0.23900574 cal.

How many Joule are in 1 Calorie?

1 cal = 4.18399993238656 J.

Is Joule bigger or smaller than Calorie?

Joule is smaller than Calorie. 1 Calorie = 4.18399993238656 J.

What is 5000 J in cal?

5000 J = 1,195.028681 cal.

What is 500 cal in J?

500 cal = 2,092 J.

How much energy is 1 joule in everyday terms?

1 joule is tiny — roughly the energy released when a small apple falls 1 meter, or about a quarter of a calorie.