Kilojoule to Calorie (th) Converter
Convert Kilojoule (kJ) to Calorie (th) (cal) instantly. 1 kJ = 239.005736 cal.
Energy Converter
27 units available
1 kJ = 239.005736 cal
Formula:
cal = kJ × 239.0057361377With your value: 1 kJ = 239.00573614 cal
How big is that?
Everyday references on a logarithmic scale, all expressed in kilojoule so you can sanity-check the result.
Other Kilojoule to Calorie (th) conversions
Kilojoule to Calorie (th) Conversion Table
| Kilojoule (kJ) | Calorie (th) (cal) |
|---|---|
| 0.5 | 119.502868 |
| 1 | 239.005736 |
| 2 | 478.011472 |
| 5 | 1,195.028681 |
| 10 | 2,390.057361 |
| 15 | 3,585.086042 |
| 20 | 4,780.114723 |
| 25 | 5,975.143403 |
| 50 | 11,950.286807 |
| 100 | 23,900.573614 |
| 250 | 59,751.434034 |
| 500 | 119,502.868069 |
| 1000 | 239,005.736138 |
Calorie (th) to Kilojoule Conversion Table
| Calorie (th) (cal) | Kilojoule (kJ) |
|---|---|
| 0.5 | 0.002092 |
| 1 | 0.004184 |
| 2 | 0.008368 |
| 5 | 0.02092 |
| 10 | 0.04184 |
| 15 | 0.06276 |
| 20 | 0.08368 |
| 25 | 0.1046 |
| 50 | 0.2092 |
| 100 | 0.4184 |
| 250 | 1.046 |
| 500 | 2.092 |
| 1000 | 4.184 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Kilojoule (kJ)
Energy
Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Calorie (th) (cal)
Energy
The thermochemical calorie is exactly 4.184 J.
The International Table calorie (4.1868 J) and the 15 °C calorie differ slightly.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Kilojoule to Calorie (th)
To convert from Kilojoule (kJ) to Calorie (th) (cal), multiply the value by 239.0057361377.
Formula: cal = kJ × 239.0057361377
Reverse: kJ = cal × 0.004184
Step-by-Step Example
- Start with your value in Kilojoule. For example: 5 kJ
- Multiply by the conversion factor: 5 x 239.0057361377
- The result is: 1,195.028681 cal
About Kilojoule
The kilojoule (kJ) is a unit of energy and work. One kilojoule equals 1000 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: energy calculations, engineering and science, education.
About Calorie (th)
The thermochemical calorie equals 4.184 joules. Not to be confused with the food Calorie (kcal), which equals 1,000 calories.
Common uses: chemistry, nutrition, heating.
Frequently Asked Questions
How many Calorie (th) are in 1 Kilojoule?
There are exactly 239.0057361377 Calorie (th) in 1 Kilojoule. This means the conversion factor from Kilojoule to Calorie (th) is 239.0057361377.
What is the formula to convert Kilojoule to Calorie (th)?
The formula to convert Kilojoule to Calorie (th) is: cal = kJ × 239.0057361377. For example, to convert 10 Kilojoule to Calorie (th), you would multiply 10 by 239.0057361377.
What is a Kilojoule?
The kilojoule (kJ) is a unit of energy and work. One kilojoule equals 1000 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Calorie (th)?
The thermochemical calorie equals 4.184 joules. Not to be confused with the food Calorie (kcal), which equals 1,000 calories.
What are the common uses of Kilojoule?
The Kilojoule is commonly used in energy calculations, engineering and science, education.
Related Energy Conversions
Cite this page
UnitConvertLab. (2026). Kilojoule to Calorie (th) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/kilojoule-to-calorie