Calories to Joules (cal → J)
Formula
1 cal = 4.184 JConversion Table
| cal | J |
|---|---|
| 0 | 0 |
| 1.0000 | 4.1840 |
| 2.0000 | 8.3680 |
| 3.0000 | 12.552 |
| 4.0000 | 16.736 |
| 5.0000 | 20.920 |
| 6.0000 | 25.104 |
| 7.0000 | 29.288 |
| 8.0000 | 33.472 |
| 9.0000 | 37.656 |
| 10.000 | 41.840 |
| 11.000 | 46.024 |
| 12.000 | 50.208 |
| 13.000 | 54.392 |
| 14.000 | 58.576 |
| 15.000 | 62.760 |
| 16.000 | 66.944 |
| 17.000 | 71.128 |
| 18.000 | 75.312 |
| 19.000 | 79.496 |
| cal | J |
|---|---|
| 20.000 | 83.680 |
| 21.000 | 87.864 |
| 22.000 | 92.048 |
| 23.000 | 96.232 |
| 24.000 | 100.42 |
| 25.000 | 104.60 |
| 26.000 | 108.78 |
| 27.000 | 112.97 |
| 28.000 | 117.15 |
| 29.000 | 121.34 |
| 30.000 | 125.52 |
| 31.000 | 129.70 |
| 32.000 | 133.89 |
| 33.000 | 138.07 |
| 34.000 | 142.26 |
| 35.000 | 146.44 |
| 36.000 | 150.62 |
| 37.000 | 154.81 |
| 38.000 | 158.99 |
| 39.000 | 163.18 |
| cal | J |
|---|---|
| 40.000 | 167.36 |
| 41.000 | 171.54 |
| 42.000 | 175.73 |
| 43.000 | 179.91 |
| 44.000 | 184.10 |
| 45.000 | 188.28 |
| 46.000 | 192.46 |
| 47.000 | 196.65 |
| 48.000 | 200.83 |
| 49.000 | 205.02 |
| 50.000 | 209.20 |
| 51.000 | 213.38 |
| 52.000 | 217.57 |
| 53.000 | 221.75 |
| 54.000 | 225.94 |
| 55.000 | 230.12 |
| 56.000 | 234.30 |
| 57.000 | 238.49 |
| 58.000 | 242.67 |
| 59.000 | 246.86 |
| cal | J |
|---|---|
| 60.000 | 251.04 |
| 61.000 | 255.22 |
| 62.000 | 259.41 |
| 63.000 | 263.59 |
| 64.000 | 267.78 |
| 65.000 | 271.96 |
| 66.000 | 276.14 |
| 67.000 | 280.33 |
| 68.000 | 284.51 |
| 69.000 | 288.70 |
| 70.000 | 292.88 |
| 71.000 | 297.06 |
| 72.000 | 301.25 |
| 73.000 | 305.43 |
| 74.000 | 309.62 |
| 75.000 | 313.80 |
| 76.000 | 317.98 |
| 77.000 | 322.17 |
| 78.000 | 326.35 |
| 79.000 | 330.54 |
Calories to Joules Conversion
Converting Calories (cal) to Joules (J) is a common energy and power conversion. 1 cal equals 4.184 J. For example, 100 cal is equal to 418.4 J.
Quick Mental Math: Calories to Joules
1 calorie is about 4.2 joules. Multiply by 4, then add a small extra part.
Why is converting Calories to Joules tricky?
Calories and kilocalories are often mixed up on labels, which leads to unit confusion.
Quick Reference Values
1 cal = 4.184 J. 10 cal = 41.84 J. 50 cal = 209.2 J. 100 cal = 418.4 J. 200 cal = 836.8 J. 500 cal = 2,092 J. 1,000 cal = 4,184 J.
What is Calories?
Calories (cal) is a unit of energy and power. The calorie (cal) is defined as exactly 4.184 joules. It quantifies the energy needed to raise the temperature of one gram of water by 1°C under standard conditions. The calorie is widely used in chemistry and nutrition to express energy content [bipm-si-brochure]. The calorie was introduced in the early 19th century by Nicolas Clément and standardized internationally in the 20th century. It was adopted for practical energy measurement in chemistry and food science before the joule became the SI unit [bipm-si-brochure]. Calories remain common in food labeling, nutrition, and chemistry worldwide. The dietary Calorie (kcal) is prevalent in the US, Europe, and many countries while scientific contexts prefer the joule [bipm-si-brochure].
What is Joules?
Joules (J) is a unit of energy and power. The joule is the SI unit of energy defined as the work done when a force of one newton moves an object one meter in the direction of the force. It equals one kilogram meter squared per second squared (kg·m²/s²). This definition aligns with the International System of Units as standardized by the BIPM [bipm-si-brochure]. The joule is named after James Prescott Joule, a 19th-century physicist who studied energy conservation. It was officially adopted as a unit of energy by the CGPM in 1948 to unify energy measurement standards internationally [cgpm-resolutions]. Joules are used worldwide in physics, engineering, and electrical industries to quantify energy, work, and heat. Countries using the SI system, including those in Europe, Asia, and the Americas, rely on joules for scientific and industrial applications [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: calorie, cal, calory, calo, joule, joul, jouls, juls. All of these refer to the Calories to Joules conversion.