NiftyRecipe Online energy conversion
BTU/kWh 0.000293 kJ/MJ 0.001 kcal/BTU 3.965667 cal/MJ 0.000004 kJ/kWh 0.000278 kcal/cal 1000
kJ / cal

1 kilojoule in calorie

239.005736 calorie

1 kJ = 239.005736 cal · factor

1 kilojoule equals 239.005736 calorie-handy when reading a food label or logging a meal. Factor: 1 kilojoule = 239.005736 calorie.

Enter a value and click Calculate - opens the page with the new result

Common values

calorie to kilojoule 2 kilojoules in calorie 5 kilojoules in calorie 10 kilojoules in calorie 20 kilojoules in calorie 25 kilojoules in calorie 50 kilojoules in calorie 75 kilojoules in calorie 100 kilojoules in calorie 120 kilojoules in calorie 150 kilojoules in calorie

Same amount, other units

1 kilojoule → kcal 1 kilojoule → BTU 1 kilojoule → kWh 1 kilojoule → MJ 1 kilojoule → J
Formula: kilojoule to calorie

cal = kJ × 239.005736 (1 KJ = 239.005736 CAL)

Reference values: kilojoule → calorie
kJ cal
1 kJ 239.005736 cal
100 kJ 23900.573614 cal
200 kJ 47801.147228 cal
500 kJ 119502.868069 cal
1000 kJ 239005.736138 cal
2000 kJ 478011.472275 cal

All amounts for this pair

FAQ for kJ → cal
1 kilojoule in calorie

1 kilojoule is 239.005736 calorie using the standard food-energy factor on NiftyRecipe.

Package labels, recipe macros and fitness apps often jump between kilocalories and smaller calorie units (or kilojoules). Here the ratio stays constant: 1 kilojoule = 239.005736 calorie, so 1 kilojoule always maps to 239.005736 calorie until you change the input. The reverse figure is 1 calorie ≈ 0.004184 kilojoule.

Use the field above to try another portion size, scale a recipe, or match two apps that print different units. Everything on this page stays inside nutrition-style energy units-no length, temperature or other measures mixed in.