Kilojoules to Kilocalories (kJ → kcal)
Formula
1 kJ = 0.2390057361376673 kcalConversion Table
| kJ | kcal |
|---|---|
| 0 | 0 |
| 1.0000 | 0.23901 |
| 2.0000 | 0.47801 |
| 3.0000 | 0.71702 |
| 4.0000 | 0.95602 |
| 5.0000 | 1.1950 |
| 6.0000 | 1.4340 |
| 7.0000 | 1.6730 |
| 8.0000 | 1.9120 |
| 9.0000 | 2.1511 |
| 10.000 | 2.3901 |
| 11.000 | 2.6291 |
| 12.000 | 2.8681 |
| 13.000 | 3.1071 |
| 14.000 | 3.3461 |
| 15.000 | 3.5851 |
| 16.000 | 3.8241 |
| 17.000 | 4.0631 |
| 18.000 | 4.3021 |
| 19.000 | 4.5411 |
| kJ | kcal |
|---|---|
| 20.000 | 4.7801 |
| 21.000 | 5.0191 |
| 22.000 | 5.2581 |
| 23.000 | 5.4971 |
| 24.000 | 5.7361 |
| 25.000 | 5.9751 |
| 26.000 | 6.2141 |
| 27.000 | 6.4532 |
| 28.000 | 6.6922 |
| 29.000 | 6.9312 |
| 30.000 | 7.1702 |
| 31.000 | 7.4092 |
| 32.000 | 7.6482 |
| 33.000 | 7.8872 |
| 34.000 | 8.1262 |
| 35.000 | 8.3652 |
| 36.000 | 8.6042 |
| 37.000 | 8.8432 |
| 38.000 | 9.0822 |
| 39.000 | 9.3212 |
| kJ | kcal |
|---|---|
| 40.000 | 9.5602 |
| 41.000 | 9.7992 |
| 42.000 | 10.038 |
| 43.000 | 10.277 |
| 44.000 | 10.516 |
| 45.000 | 10.755 |
| 46.000 | 10.994 |
| 47.000 | 11.233 |
| 48.000 | 11.472 |
| 49.000 | 11.711 |
| 50.000 | 11.950 |
| 51.000 | 12.189 |
| 52.000 | 12.428 |
| 53.000 | 12.667 |
| 54.000 | 12.906 |
| 55.000 | 13.145 |
| 56.000 | 13.384 |
| 57.000 | 13.623 |
| 58.000 | 13.862 |
| 59.000 | 14.101 |
| kJ | kcal |
|---|---|
| 60.000 | 14.340 |
| 61.000 | 14.579 |
| 62.000 | 14.818 |
| 63.000 | 15.057 |
| 64.000 | 15.296 |
| 65.000 | 15.535 |
| 66.000 | 15.774 |
| 67.000 | 16.013 |
| 68.000 | 16.252 |
| 69.000 | 16.491 |
| 70.000 | 16.730 |
| 71.000 | 16.969 |
| 72.000 | 17.208 |
| 73.000 | 17.447 |
| 74.000 | 17.686 |
| 75.000 | 17.925 |
| 76.000 | 18.164 |
| 77.000 | 18.403 |
| 78.000 | 18.642 |
| 79.000 | 18.881 |
Kilojoules to Kilocalories Conversion
Converting Kilojoules (kJ) to Kilocalories (kcal) is a common energy and power conversion. 1 kJ equals 0.239006 kcal. For example, 100 kJ is equal to 23.900574 kcal.
Quick Mental Math: Kilojoules to Kilocalories
1 kilojoule is 0.239 kilocalories, so use that as the mental anchor.
Why is converting Kilojoules to Kilocalories tricky?
kilojoules to kilocalories is easy to botch because small calories and food Calories differ by a factor of 1,000.
Quick Reference Values
1 kJ = 0.239006 kcal. 5 kJ = 1.195029 kcal. 10 kJ = 2.390057 kcal. 25 kJ = 5.975143 kcal. 50 kJ = 11.950287 kcal. 100 kJ = 23.900574 kcal.
What is Kilojoules?
Kilojoules (kJ) is a unit of energy and power. A kilojoule is a unit of energy equal to 1,000 joules. It quantifies work, heat, or energy transfer in the metric system, with one joule defined as one newton meter. Kilojoules are widely applied in physics, chemistry, and nutrition to measure energy content or expenditure [iso-80000]. The joule unit was named after James Prescott Joule in the late 19th century, reflecting mechanical equivalent of heat measurements. The kilojoule, as a multiple, became common with SI adoption to express larger energy quantities clearly and is standardized by ISO and BIPM [bipm-si-brochure]. Kilojoules are standard in scientific disciplines globally for energy quantification. Nutrition labels in many countries use kilojoules to indicate food energy content, while engineering and physics consistently apply kJ for energy calculations [nist-si-guide].
What is Kilocalories?
Kilocalories (kcal) is a unit of energy and power. A kilocalorie equals exactly 1,000 calories and represents the amount of energy needed to raise the temperature of 1 kilogram of water by 1 degree Celsius. It is widely used to quantify food energy and is equivalent to 4,184 joules [bipm-si-brochure]. The calorie was introduced in the early 19th century by Nicolas Clément as a unit of heat energy. The kilocalorie became standard in nutrition science by the early 20th century to express food energy content [bipm-si-brochure]. Kilocalories are used globally in nutrition labeling, especially in the US and Europe, to indicate energy content of foods. Scientific contexts often prefer joules, but kcal remains prevalent in dietetics [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: kilojoule, kilo joules, kilojouls, kilojoules energy, kj, kilo calories, kcalorie, kilo-calories. All of these refer to the Kilojoules to Kilocalories conversion.