Skip to content

kJ to kcal converter

1 kilojoule equals 0.23900574 kilocalories (food calories). Conversions use kcal = kJ × 0.239006

kJ → 0.23900574 kcal

kcal = kJ × 0.239006

Converter

Worked examples

1 kJ = 0.23900574 kcal
2 kJ = 0.47801147 kcal
5 kJ = 1.195029 kcal
10 kJ = 2.390057 kcal
100 kJ = 23.900574 kcal

kilojoules to kilocalories (food calories) conversion table

kJ	kcal	Arithmetic
4.184 kJ	1 kcal	× 0.239006
100 kJ	23.900574 kcal	× 0.239006
200 kJ	47.801147 kcal	× 0.239006
500 kJ	119.503 kcal	× 0.239006
837 kJ	200.048 kcal	× 0.239006
1000 kJ	239.006 kcal	× 0.239006
2000 kJ	478.011 kcal	× 0.239006
5000 kJ	1,195.03 kcal	× 0.239006
1 kJ	0.23900574 kcal	× 0.239006
2 kJ	0.47801147 kcal	× 0.239006
3 kJ	0.71701721 kcal	× 0.239006
4 kJ	0.95602294 kcal	× 0.239006
5 kJ	1.195029 kcal	× 0.239006
6 kJ	1.434034 kcal	× 0.239006
8 kJ	1.912046 kcal	× 0.239006
10 kJ	2.390057 kcal	× 0.239006
12 kJ	2.868069 kcal	× 0.239006
15 kJ	3.585086 kcal	× 0.239006
20 kJ	4.780115 kcal	× 0.239006
25 kJ	5.975143 kcal	× 0.239006
30 kJ	7.170172 kcal	× 0.239006
40 kJ	9.560229 kcal	× 0.239006
50 kJ	11.950287 kcal	× 0.239006
60 kJ	14.340344 kcal	× 0.239006
70 kJ	16.730402 kcal	× 0.239006
80 kJ	19.120459 kcal	× 0.239006

How to convert kJ to kcal

Take your value in kilojoules.
Multiply by 0.239006
That is your answer in kilocalories (food calories) — no rounding needed until you choose a display precision.

kcal to kJ J to kcal kJ to J kJ to cal kJ to Wh kJ to kWh kJ to Btu cal to kcal kcal to J all energy units

Questions

How many kilocalories (food calories) in 1 kilojoule?

Exactly 0.23900574 kcal. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert kJ to kcal?

Multiply the kilojoules figure by 0.239006 — or use the converter above, which updates as you type.

Is kJ to kcal the same as kcal to kJ?

No — they are inverses. One kJ is 0.23900574 kcal, while one kcal is 4.184 kJ.

What is 4.184 kJ in kcal?

4.184 kJ = 1 kcal (see the value page for the full arithmetic).