NiftyRecipe Online energy conversion
kJ/kWh 0.000278 kJ/MJ 0.001 kWh/BTU 3412.141633 kcal/MJ 0.004184 BTU/cal 252.164401 BTU/kWh 0.000293
cal / kJ

8 calories in kilojoule

0.033472 kilojoule

1 cal = 0.004184 kJ · factor

8 calories equals 0.033472 kilojoule-handy when reading a food label or logging a meal. Factor: 1 calorie = 0.004184 kilojoule.

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

Common values

kilojoule to calorie 1 calorie in kilojoule 2 calories in kilojoule 3 calories in kilojoule 4 calories in kilojoule 5 calories in kilojoule 6 calories in kilojoule 10 calories in kilojoule 12 calories in kilojoule 15 calories in kilojoule 20 calories in kilojoule
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
8 calories in kilojoule

8 calories is 0.033472 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 8 calories always maps to 0.033472 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.