Kilojoule (kJ) to Kilocalorie (kcal)
Convert kilojoules to kilocalories. Useful when reading UK food labels, tracking your daily calorie intake, or converting energy values from sports drinks and supplements. One kilojoule equals 0.2388 kilocalories.
Frequently asked questions
1 kilojoule (kJ) equals 0.2388 kilocalories (kcal). Conversely, 1 kcal = 4.184 kJ.
500 kJ equals 500 × 0.2388 = 119.4 kcal. An average apple contains around 200–250 kJ (48–60 kcal).
Divide the number of kilojoules by 4.184. Example: 2,092 kJ ÷ 4.184 = 500 kcal. For a quick estimate, divide by 4 — the result will be slightly higher than exact.
Yes. The "Calorie" (capital C) used in popular speech and on some older labels equals 1 kilocalorie. UK and EU labels use "kcal" precisely, removing the ambiguity. A snack labelled 200 kcal on a British packet contains the same energy as one labelled 200 Calories on an American packet.