Convert Kilojoules (kJ) to Calories (cal)
Understanding energy measurements is crucial for nutrition and fitness. With a conversion factor of 1 kJ = 239.006 cal, you can easily determine how many calories are in your meals. Whether you're tracking your diet or calculating energy expenditure, this conversion is essential.
Conversion Formula
Reverse: kJ = cal × 0.004184
Conversion Examples
Kilojoule to Calorie Table
| Kilojoule (kJ) | Calorie (cal) | Fraction |
|---|---|---|
| 1 | 239 | — |
| 2 | 478 | 478 1/64 |
| 3 | 717 | 717 1/64 |
| 4 | 956 | 956 1/64 |
| 5 | 1,195 | 1195 1/32 |
| 6 | 1,434 | 1434 1/32 |
| 7 | 1,673 | 1673 3/64 |
| 8 | 1,912 | 1912 3/64 |
| 9 | 2,151.1 | 2151 3/64 |
| 10 | 2,390.1 | 2390 1/16 |
| 11 | 2,629.1 | 2629 1/16 |
| 12 | 2,868.1 | 2868 1/16 |
| 13 | 3,107.1 | 3107 5/64 |
| 14 | 3,346.1 | 3346 5/64 |
| 15 | 3,585.1 | 3585 3/32 |
| 16 | 3,824.1 | 3824 3/32 |
| 17 | 4,063.1 | 4063 3/32 |
| 18 | 4,302.1 | 4302 7/64 |
| 19 | 4,541.1 | 4541 7/64 |
| 20 | 4,780.1 | 4780 7/64 |
Unit Definitions
What is a Kilojoule (kJ)?
A kilojoule (kJ) is a unit of energy in the International System of Units (SI), representing the energy transferred when applying a force of one newton over a distance of one meter.
History
The kilojoule has its roots in the joule, named after James Prescott Joule, who contributed significantly to the field of thermodynamics in the 19th century. It became a standard unit in the metric system to measure energy, heat, and work.
Current Use
Today, kilojoules are widely used in nutritional contexts, especially in countries that have adopted the metric system, for example, in food labeling and dietary recommendations.
Learn more about KilojouleWhat is a Calorie (cal)?
A calorie (cal) is a unit of energy defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius.
History
The calorie was originally defined in the 19th century and became a fundamental unit for measuring energy in physical sciences. It was later standardized as part of the metric system.
Current Use
Calories are predominantly used in the United States and in various dietary contexts worldwide to indicate the energy value of foods, especially in weight management and fitness.
Learn more about Calorie