• kJ   kcal
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Rounding Mode:

The kilojoule, abbreviated as kJ, is a unit of energy in the International System of Units. While it may not be as commonly recognized as calories in everyday conversation, the kilojoule is actually the standard metric unit for quantifying energy. Fascinatingly, 1 kilojoule is equivalent to 0.239 calories, making it a handy unit for converting nutritional information, especially in countries that primarily use the metric system.

Interestingly, the term “joule” is named after the English physicist James Prescott Joule, who studied the nature of heat and discovered its relationship to mechanical work. This unit has applications far beyond nutrition, including physics, chemistry, and engineering, where it measures various types of energy transformations, from kinetic to thermal. Understanding kilojoules can deepen our appreciation of energy, highlighting the intricate balances that power our world and our bodies.

Did you know?

A kilocalorie, often referred to simply as a “calorie” in the context of food and nutrition, is a unit of energy that equals 1,000 small calories. It’s the measure used to indicate how much energy food can provide to the body, crucial for fueling daily activities and maintaining body functions. Interestingly, the term kilocalorie has its roots in the Latin “calor” meaning heat, as it was originally tied to measuring energy in terms of heating.

In the world of nutrition, one kilocalorie is the amount of energy required to raise the temperature of one kilogram of water by one degree Celsius. Despite the prevalence of kilocalories in diet and health discussions, they were initially developed for scientific purposes during studies on thermodynamics in the 19th century. So, every time you check the calorie content on a food label, you’re engaging with a concept that has been bridging chemistry, physics, and nutrition for centuries!

> Kilojoules to Kilocalories Conversion Table

Kilojoules Kilocalories
0 kJ 0 kcal
10 kJ 2.39006 kcal
20 kJ 4.78011 kcal
30 kJ 7.17017 kcal
40 kJ 9.56023 kcal
50 kJ 11.95029 kcal
60 kJ 14.34034 kcal
70 kJ 16.7304 kcal
80 kJ 19.12046 kcal
90 kJ 21.51052 kcal
100 kJ 23.90057 kcal
110 kJ 26.29063 kcal
120 kJ 28.68069 kcal
130 kJ 31.07075 kcal
140 kJ 33.4608 kcal
150 kJ 35.85086 kcal
160 kJ 38.24092 kcal
170 kJ 40.63098 kcal
180 kJ 43.02103 kcal
190 kJ 45.41109 kcal
200 kJ 47.80115 kcal
210 kJ 50.1912 kcal
220 kJ 52.58126 kcal
230 kJ 54.97132 kcal
240 kJ 57.36138 kcal
250 kJ 59.75143 kcal
260 kJ 62.14149 kcal
270 kJ 64.53155 kcal
280 kJ 66.92161 kcal
290 kJ 69.31166 kcal
300 kJ 71.70172 kcal
310 kJ 74.09178 kcal
320 kJ 76.48184 kcal
330 kJ 78.87189 kcal
340 kJ 81.26195 kcal
350 kJ 83.65201 kcal
360 kJ 86.04207 kcal
370 kJ 88.43212 kcal
380 kJ 90.82218 kcal
390 kJ 93.21224 kcal
400 kJ 95.60229 kcal
410 kJ 97.99235 kcal
420 kJ 100.38241 kcal
430 kJ 102.77247 kcal
440 kJ 105.16252 kcal
450 kJ 107.55258 kcal
460 kJ 109.94264 kcal
470 kJ 112.3327 kcal
480 kJ 114.72275 kcal
490 kJ 117.11281 kcal
500 kJ 119.50287 kcal
510 kJ 121.89293 kcal
520 kJ 124.28298 kcal
530 kJ 126.67304 kcal
540 kJ 129.0631 kcal
550 kJ 131.45315 kcal
560 kJ 133.84321 kcal
570 kJ 136.23327 kcal
580 kJ 138.62333 kcal
590 kJ 141.01338 kcal
600 kJ 143.40344 kcal
610 kJ 145.7935 kcal
620 kJ 148.18356 kcal
630 kJ 150.57361 kcal
640 kJ 152.96367 kcal
650 kJ 155.35373 kcal
660 kJ 157.74379 kcal
670 kJ 160.13384 kcal
680 kJ 162.5239 kcal
690 kJ 164.91396 kcal
700 kJ 167.30402 kcal
710 kJ 169.69407 kcal
720 kJ 172.08413 kcal
730 kJ 174.47419 kcal
740 kJ 176.86424 kcal
750 kJ 179.2543 kcal
760 kJ 181.64436 kcal
770 kJ 184.03442 kcal
780 kJ 186.42447 kcal
790 kJ 188.81453 kcal
800 kJ 191.20459 kcal
810 kJ 193.59465 kcal
820 kJ 195.9847 kcal
830 kJ 198.37476 kcal
840 kJ 200.76482 kcal
850 kJ 203.15488 kcal
860 kJ 205.54493 kcal
870 kJ 207.93499 kcal
880 kJ 210.32505 kcal
890 kJ 212.71511 kcal
900 kJ 215.10516 kcal
910 kJ 217.49522 kcal
920 kJ 219.88528 kcal
930 kJ 222.27533 kcal
940 kJ 224.66539 kcal
950 kJ 227.05545 kcal
960 kJ 229.44551 kcal
970 kJ 231.83556 kcal
980 kJ 234.22562 kcal
990 kJ 236.61568 kcal
1000 kJ 239.00574 kcal