4 calories in kilojoule

0.016736 kilojoule

1 cal = 0.004184 kJ · factor

Swap units or open the reverse direction if you need kilojoule back to calorie (about 239.005736 calorie per kilojoule).

Common values

kilojoule to calorie 1 calorie in kilojoule 2 calories in kilojoule 3 calories in kilojoule 5 calories in kilojoule 6 calories in kilojoule 8 calories in kilojoule 10 calories in kilojoule 12 calories in kilojoule 15 calories in kilojoule 20 calories in kilojoule

Same amount, other units

4 calories → kcal 4 calories → BTU 4 calories → kWh 4 calories → MJ

Related converters

cal → kcal cal → BTU cal → kWh cal → MJ

Formula: calorie to kilojoule

kJ = cal × 0.004184 (1 CAL = 0.004184 KJ)

Reference values: calorie → kilojoule

cal	kJ
1 cal	0.004184 kJ
100 cal	0.4184 kJ
200 cal	0.8368 kJ
500 cal	2.092 kJ
1000 cal	4.184 kJ
2000 cal	8.368 kJ

All amounts for this pair

FAQ for cal → kJ

4 calories in kilojoule

4 calories is 0.016736 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 calorie = 0.004184 kilojoule, so 4 calories always maps to 0.016736 kilojoule until you change the input. The reverse figure is 1 kilojoule ≈ 239.005736 calorie.

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.