Energy
Joule to Kilocalories
Convert joule to kilocalories instantly.
About this conversion
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. At løfte et æble én meter kræver ca. 1 joule, og en menneskekrops daglige energibehov er ca. 8 millioner joule. 1.000 joule er én kilojoule. Kilocalories (kcal) — commonly called "calories" — are used on food labels and in dietary calculations. 4,184 joule equal 1 Kilocalories. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
How to use
Enter a value in the joule field and instantly see the result in kilocalories. Click the swap button to reverse the conversion.
Manual calculation
1 joule = 0.00023901 kilocalories. Example: 10 J = 0.0023901 kcal.
Frequently asked questions
How do you convert joule to kilocalories?
Divide the number of joule by 4,184 to get kilocalories. Example: 10,000 J ÷ 4,184 = 2.3901 kcal.
Are joule bigger or smaller than kilocalories?
Joule is smaller than Kilocalories. There are 4,184 joule in one kilocalorie, so the result is a smaller number when converting from joule to kilocalories.
What is 1,000 joule in kilocalories?
1,000 J equals 0.23901 kcal.
How many joule are in 1 kilocalorie?
1 kcal equals 4,184 J. This is the reverse conversion — useful if you have a value in kilocalories and want it in joule.
What is joule?
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. At løfte et æble én meter kræver ca. 1 joule, og en menneskekrops daglige energibehov er ca. 8 millioner joule. 1.000 joule er én kilojoule.
What is kilocalorie used for?
Kilocalories (kcal) — commonly called "calories" — are used on food labels and in dietary calculations.