NiftyRecipe Online energy conversion
BTU/kJ 1.055056 kWh/kJ 3600 cal/BTU 0.003966 BTU/kWh 0.000293 kJ/cal 239.005736 MJ/kcal 239.005736
kcal / kJ

10 kilocalories in kilojoule

41.84 kilojoule

1 kcal = 4.184 kJ · factor

Swap units or open the reverse direction if you need kilojoule back to kilocalorie (about 0.239006 kilocalorie per kilojoule).

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

Formula: kilocalorie to kilojoule

kJ = kcal × 4.184 (1 KCAL = 4.184 KJ)

Reference values: kilocalorie → kilojoule
kcal kJ
1 kcal 4.184 kJ
100 kcal 418.4 kJ
200 kcal 836.8 kJ
500 kcal 2092 kJ
1000 kcal 4184 kJ
2000 kcal 8368 kJ

All amounts for this pair

FAQ for kcal → kJ
10 kilocalories in kilojoule

10 kilocalories is 41.84 kilojoule 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 kilocalorie = 4.184 kilojoule, so 10 kilocalories always maps to 41.84 kilojoule until you change the input. The reverse figure is 1 kilojoule ≈ 0.239006 kilocalorie.

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.