Convert Calorie to Kilojoule (cal to kJ)
Calorie (cal) and Kilojoule (kJ) are both units of energy. With the conversion form below, you can effortlessly and accurately convert calorie to kilojoule. This free online calculator tool makes it simple and easy to perform the conversion from cal unit to the kJ unit.
Calorie to Kilojoule conversion
Calorie to Kilojoule Conversion Formula
One Calorie is equal to 0.004184 Kilojoule.
Formula: 1 cal = 0.004184 kJ
By using this conversion factor, you can easily convert any energy measurement from calorie unit to kilojoule unit with precision.
How to Convert cal to kJ?
Converting from cal to kJ is a straightforward process. Follow these steps to ensure accurate conversions from calorie to kilojoule:
- Select the Calorie Value: Start by determining the calorie (cal) value you want to convert into kilojoule (kJ). This is your starting point.
- Multiply by the Conversion Factor: To calculate calorie to equivalent kilojoule amount, multiply the selected cal value by 0.004184.
- Illustration of Multiplication:
- 1 cal = 0.004184 kJ
- 10 cal = 0.04184 kJ
- 100 cal = 0.4184 kJ
- Find the Conversion Result: The result of this multiplication is your converted value in kilojoule unit. This represents the same energy but in a different unit.
- Save Your Kilojoule Value: After converting, remember to save the result. This value represents the energy you initially measured, now expressed in kilojoules.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the calorie value by 239.005736138. This alternative method also gives you the correct energy in kilojoules.
- Illustration of Division:
- kJ = cal ÷ 239.005736138
What is Energy?
Energy is the capacity of a physical system to do work or produce heat. The SI unit is the joule (J), defined as the work done when a force of one newton is applied over one metre (1 J = 1 N·m = 1 kg·m²/s²). Other important units include the kilowatt-hour (kWh)—used on electricity bills (1 kWh = 3.6 MJ)—the calorie (cal)—used in nutrition (1 food Calorie = 1 kcal = 4,184 J)—and the electronvolt (eV), used in atomic and particle physics (1 eV = 1.602 × 10⁻¹⁹ J).
What is Calorie?
The calorie (symbol: cal) is a unit of energy traditionally used to measure heat and energy transfer. Although the joule (J) is the official SI unit of energy, the......(Read more on Calorie).
What is Kilojoule?
Kilojoule (kJ): Understanding a Unit of Energy
The kilojoule, represented by the symbol "kJ," is a unit of energy in the International System of Units (SI). It is equivalent to ......(Read more on Kilojoule).
Some Calorie to Kilojoule conversions
- 0.1 cal = 0.00041840000000000053 kJ
- 0.2 cal = 0.00083680000000000106 kJ
- 0.3 cal = 0.0012552 kJ
- 0.4 cal = 0.0016736 kJ
- 0.5 cal = 0.002092 kJ
- 0.6 cal = 0.0025104 kJ
- 0.7 cal = 0.0029288 kJ
- 0.8 cal = 0.0033472 kJ
- 0.9 cal = 0.0037656 kJ
- 1 cal = 0.004184 kJ
- 2 cal = 0.008368 kJ
- 3 cal = 0.012552 kJ
- 4 cal = 0.016736 kJ
- 5 cal = 0.02092 kJ
- 6 cal = 0.025104 kJ
- 7 cal = 0.029288 kJ
- 8 cal = 0.033472 kJ
- 9 cal = 0.037656 kJ
- 10 cal = 0.04184 kJ
- 20 cal = 0.08368 kJ
- 30 cal = 0.12552 kJ
- 40 cal = 0.16736 kJ
- 50 cal = 0.2092 kJ
- 60 cal = 0.25104 kJ
- 70 cal = 0.29288 kJ
- 80 cal = 0.33472 kJ
- 90 cal = 0.37656 kJ
- 100 cal = 0.4184 kJ

Calorie to Kilojoule Examples
Example 1:
Convert 0.8 Calorie energy to Kilojoule unit.
Solution:
We know that one Calorie is equivalent to 0.004184 Kilojoule.
Therefore,
0.8 cal = 0.8 x 0.004184 kJ.
0.8 cal = 0.0033472 kJ.
Hence, 0.8 Calorie is approximately equal to 0.0033472 Kilojoule.
Example 2:
Convert 9 Calorie energy to Kilojoule unit.
Solution:
We know that one Calorie is equivalent to 0.004184 Kilojoule.
Therefore,
9 cal = 9 x 0.004184 kJ.
9 cal = 0.037656 kJ.
Hence, 9 Calorie is approximately equal to 0.037656 Kilojoule.
Frequently Asked Questions
How do you convert cal to kJ formula?
The main formula for the conversion of the cal value to kJ amount is to multiply the cal value by 0.004184.
There are 0.004184 Kilojoule in 1 Calorie.To convert from Calorie to Kilojoule, multiply your figure by 0.004184 (or divide by 239.005736138).
What is the relation between Calorie and Kilojoule?
The relationship between Calorie and Kilojoule is given as follows: 1 cal = 0.004184 kJ
What is the value of 1 Calorie in equivalent Kilojoule?
1 Calorie energy is equivalent to 0.004184 Kilojoule energy.
What is the calorie in kilojoule?
1 calorie equals 0.004184 kilojoules.
What is the value of 15 Calorie in Kilojoules?
We know that 1 Calorie is equal to 0.004184 Kilojoule, multiply 15 by 0.004184 Kilojoule. Therefore, 15 Calorie = 15 x 0.004184 Kilojoule, 15 cal = 0.06276 kJ. Hence, the value of 15 Calorie in Kilojoule is 0.06276 kJ.
What Energy is 1 kJ?
The Energy of 1 kJ spans 239.005736138 Calorie.
1 cal how much kilojoule?
1 Calorie (cal) corresponds to 0.004184 Kilojoule (kJ).