Kilojoule to Calorie Converter (kJ to cal)

How to Convert Kilojoule to Calorie

Formula: Calorie = Kilojoule × 239.00573614

Example: 1 kJ = 239.00573614 cal

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

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

Step-by-step example — Convert 500 kJ to cal:

What is Kilojoule and Calorie?

A Kilojoule (kJ) equals 1,000 joules and is used on nutrition labels in many countries outside the US.

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 Kilojoule to Calorie Conversion

• Kilojoule: Commonly used for expressing exercise energy expenditure in fitness apps.
• Calorie: Commonly used for measuring small amounts of heat energy in chemistry and physics.
• Kilojoule: Commonly used in engineering and chemistry for everyday-scale energy calculations.
• Calorie: Commonly used in older nutrition science before kilocalories became the everyday standard.

Frequently Asked Questions

What is the formula to convert Kilojoule to Calorie?

The formula is: Calorie = Kilojoule x 239.00573614. Multiply any Kilojoule value by 239.00573614 to get the equivalent in Calorie.

What is 1 Kilojoule in Calorie?

1 kJ = 239.00573614 cal.

How many Kilojoule are in 1 Calorie?

1 cal = 0.00418399999995916 kJ.

Is Kilojoule bigger or smaller than Calorie?

Kilojoule is bigger than Calorie. 1 Kilojoule = 239.00573614 cal.

What is 1000 kJ in cal?

1000 kJ = 239,005.7361 cal.

What is 500 cal in kJ?

500 cal = 2.092 kJ.

How many kilojoules are in a typical daily diet?

A common daily energy guideline is around 8,400 kJ (about 2,000 kcal) for an average adult, though actual needs vary by person.