Table of Contents
Kilocalories (kcal) and joules (J) are units of energy commonly used to measure the amount of energy contained in food and the energy expended during physical activities. Here’s a breakdown of each unit:
Kilocalorie (kcal)
kilocalories, often referred to simply as “calorie” in everyday language, is a unit of energy commonly used in the context of nutrition and diet. It’s the amount of energy required to raise the temperature of one kilogram of water by one degree Celsius. In the context of food, when we talk about the calorie content of a food item, we are actually referring to kilocalories.
Joule (J)
The joule is the standard unit of energy in the International System of Units (SI). It’s a more fundamental unit of energy that can be applied to various fields beyond nutrition, such as physics and engineering. One joule is defined as the amount of energy transferred when a force of one newton is applied over a distance of one meter. Joules are often used to quantify energy in scientific and technical contexts.
How to convert from kcal to joules
To convert from kilocalories (kcal) to joules (J), you can use the conversion factor:
1 kcal = 4.184 kJ
Here’s how you can perform the conversion:
- Identify the number of kilocalories you want to convert.
- Multiply the number of kilocalories by the conversion factor (4.184).
Energy in joules (J) = Energy in kilocalories (kcal) × 4.184
For example, let’s say you have 100 kcal and you want to convert it to joules:
Energy in joules (J) = 100 kcal × 4.184 kJ/kcal = 418.4 kJ
So, 100 kilocalories is equivalent to 418.4 kilojoules.
kcal to joules Conversion Table
| Kilocalories | Joules |
| 0.001 kcal | 4.184 J |
| 0.002 kcal | 8.368 J |
| 0.003 kcal | 12.55 J |
| 0.004 kcal | 16.74 J |
| 0.005 kcal | 20.92 J |
| 0.006 kcal | 25.1 J |
| 0.007 kcal | 29.29 J |
| 0.008 kcal | 33.47 J |
| 0.009 kcal | 37.66 J |
| 0.01 kcal | 41.84 J |
| 0.02 kcal | 83.68 J |
| 0.03 kcal | 125.52 J |
| 0.04 kcal | 167.36 J |
| 0.05 kcal | 209.2 J |
| 0.06 kcal | 251.04 J |
| 0.07 kcal | 292.88 J |
| 0.08 kcal | 334.72 J |
| 0.09 kcal | 376.56 J |
| 0.1 kcal | 418.4 J |
| 0.2 kcal | 836.8 J |
| 0.3 kcal | 1,255 J |
| 0.4 kcal | 1,674 J |
| 0.5 kcal | 2,092 J |
| 0.6 kcal | 2,510 J |
| 0.7 kcal | 2,929 J |
| 0.8 kcal | 3,347 J |
| 0.9 kcal | 3,766 J |
| 1 kcal | 4,184 J |
FAQs on kcal to joules Conversion Table
What is 1 kcal equal to in joule?
1 kilocalorie (kcal) is equal to 4.184 kilojoules (kJ).
Is 1 kcal 4.184 J?
Yes, that's correct. 1 kilocalorie (kcal) is equal to 4.184 kilojoules (kJ).
Is 1 kcal equal to 1 kJ?
No, 1 kilocalorie (kcal) is not equal to 1 kilojoule (kJ). 1 kcal is equivalent to 4.184 kJ.
How do you convert 1.41 kcal to joules?
To convert kilocalories to joules, you can use the conversion factor: 1 kcal = 4.184 kJ. Therefore, to convert 1.41 kcal to joules: Energy in joules (J) = 1.41 kcal × 4.184 kJ/kcal = 5.90824 kJ.
Is 1 kcal 4.2 J?
No, 1 kilocalorie (kcal) is not equal to 4.2 joules (J). The correct conversion is 1 kcal = 4.184 J.
Is 1 kcal 4.18 joules true or false?
False. 1 kilocalorie (kcal) is not equal to 4.18 joules (J). The accurate conversion is 1 kcal = 4.184 J.
What is the energy of 1 kcal?
The energy of 1 kilocalorie (kcal) is equivalent to 4.184 kilojoules (kJ) or 4184 joules (J).
