Convert calories to kilojoules

Convert cal to kJ (Swap)

The "calories" unit is commonly confused with other units. Click for details.

The "calories" unit is commonly confused the units listed below which have similar names and/or values. Please ensure that you've selected the correct unit for the more accurate conversion!

calories, defined as 4.184 J
kilocalories, defined as 4,184 J

Converter

Guide

How to convert calories into kilojoules?

To convert calories into kilojoules, preform the following calculations:

1 cal = 0.004184 kJ

energy in calories × 0.004184 = energy in kilojoules

Example:

15 cal

15 calories × 0.004184 = 0.06276 kilojoules

How many kilojoules in a calorie?

There are 0.004184 kilojoules in a calorie.

How many calories in a kilojoule?

There are 239.0057 calories in a kilojoule.

Value Chart

Calories (cal)	Kilojoules (kJ)
0 cal	0 kJ
0.01 cal	0.00004184 kJ
0.1 cal	0.0004184 kJ
0.2 cal	0.0008368 kJ
0.3 cal	0.0012552 kJ
0.4 cal	0.0016736 kJ
0.5 cal	0.002092 kJ
0.6 cal	0.0025104 kJ
0.7 cal	0.0029288 kJ
0.8 cal	0.0033472 kJ
0.9 cal	0.0037656 kJ
1 cal	0.004184 kJ
1.2 cal	0.0050208 kJ
1.4 cal	0.0058576 kJ
1.6 cal	0.0066944 kJ
1.8 cal	0.0075312 kJ
2 cal	0.008368 kJ
2.2 cal	0.0092048 kJ
2.4 cal	0.010042 kJ
2.6 cal	0.010878 kJ
2.8 cal	0.011715 kJ
3 cal	0.012552 kJ
3.2 cal	0.013389 kJ
3.4 cal	0.014226 kJ
3.6 cal	0.015062 kJ
3.8 cal	0.015899 kJ
4 cal	0.016736 kJ
4.2 cal	0.017573 kJ
4.4 cal	0.01841 kJ
4.6 cal	0.019246 kJ
4.8 cal	0.020083 kJ
5 cal	0.02092 kJ
5.5 cal	0.023012 kJ
6 cal	0.025104 kJ
6.5 cal	0.027196 kJ
7 cal	0.029288 kJ
7.5 cal	0.03138 kJ
8 cal	0.033472 kJ
8.5 cal	0.035564 kJ
9 cal	0.037656 kJ
9.5 cal	0.039748 kJ
10 cal	0.04184 kJ
11 cal	0.046024 kJ
12 cal	0.050208 kJ
13 cal	0.054392 kJ
14 cal	0.058576 kJ
15 cal	0.06276 kJ
16 cal	0.066944 kJ
17 cal	0.071128 kJ
18 cal	0.075312 kJ
19 cal	0.079496 kJ
20 cal	0.08368 kJ
21 cal	0.087864 kJ
22 cal	0.092048 kJ
23 cal	0.096232 kJ
24 cal	0.10042 kJ
25 cal	0.1046 kJ
26 cal	0.10878 kJ
27 cal	0.11297 kJ
28 cal	0.11715 kJ
29 cal	0.12134 kJ
30 cal	0.12552 kJ
31 cal	0.1297 kJ
32 cal	0.13389 kJ
33 cal	0.13807 kJ
34 cal	0.14226 kJ
35 cal	0.14644 kJ
36 cal	0.15062 kJ
37 cal	0.15481 kJ
38 cal	0.15899 kJ
39 cal	0.16318 kJ
40 cal	0.16736 kJ
41 cal	0.17154 kJ
42 cal	0.17573 kJ
43 cal	0.17991 kJ
44 cal	0.1841 kJ
45 cal	0.18828 kJ
46 cal	0.19246 kJ
47 cal	0.19665 kJ
48 cal	0.20083 kJ
49 cal	0.20502 kJ
50 cal	0.2092 kJ
52 cal	0.21757 kJ
54 cal	0.22594 kJ
56 cal	0.2343 kJ
58 cal	0.24267 kJ
60 cal	0.25104 kJ
62 cal	0.25941 kJ
64 cal	0.26778 kJ
66 cal	0.27614 kJ
68 cal	0.28451 kJ
70 cal	0.29288 kJ
72 cal	0.30125 kJ
74 cal	0.30962 kJ
76 cal	0.31798 kJ
78 cal	0.32635 kJ
80 cal	0.33472 kJ
82 cal	0.34309 kJ
84 cal	0.35146 kJ
86 cal	0.35982 kJ
88 cal	0.36819 kJ
90 cal	0.37656 kJ
92 cal	0.38493 kJ
94 cal	0.3933 kJ
96 cal	0.40166 kJ
98 cal	0.41003 kJ
100 cal	0.4184 kJ

Sources & References

UnitSwap uses sources (which are listed below) to ensure the best accuracy on conversions. See more information about reliable sources and conversion accuracy here.

Calories definition source: en.wikipedia.org
Kilojoules definition source: en.wikipedia.org