Millijoule to Calorie (th) Converter
Convert Millijoule (mJ) to Calorie (th) (cal) instantly. 1 mJ = 0.000239 cal.
Energy Converter
27 units available
1 mJ = 0.000239 cal
Formula:
cal = mJ × 0.0002390057With your value: 1 mJ = 0.00023901 cal
How big is that?
Everyday references on a logarithmic scale, all expressed in millijoule so you can sanity-check the result.
Other Millijoule to Calorie (th) conversions
Millijoule to Calorie (th) Conversion Table
| Millijoule (mJ) | Calorie (th) (cal) |
|---|---|
| 0.5 | 0.00012 |
| 1 | 0.000239 |
| 2 | 0.000478 |
| 5 | 0.001195 |
| 10 | 0.00239 |
| 15 | 0.003585 |
| 20 | 0.00478 |
| 25 | 0.005975 |
| 50 | 0.01195 |
| 100 | 0.023901 |
| 250 | 0.059751 |
| 500 | 0.119503 |
| 1000 | 0.239006 |
Calorie (th) to Millijoule Conversion Table
| Calorie (th) (cal) | Millijoule (mJ) |
|---|---|
| 0.5 | 2,092 |
| 1 | 4,184 |
| 2 | 8,368 |
| 5 | 20,920 |
| 10 | 41,840 |
| 15 | 62,760 |
| 20 | 83,680 |
| 25 | 104,600 |
| 50 | 209,200 |
| 100 | 418,400 |
| 250 | 1,046,000 |
| 500 | 2,092,000 |
| 1000 | 4,184,000 |
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.
Millijoule (mJ)
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 Millijoule to Calorie (th)
To convert from Millijoule (mJ) to Calorie (th) (cal), multiply the value by 0.0002390057.
Formula: cal = mJ × 0.0002390057
Reverse: mJ = cal × 4,184
Step-by-Step Example
- Start with your value in Millijoule. For example: 5 mJ
- Multiply by the conversion factor: 5 x 0.0002390057
- The result is: 0.001195 cal
About Millijoule
The millijoule (mJ) is a unit of energy and work. One millijoule equals 0.001 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 Millijoule?
There are exactly 0.0002390057 Calorie (th) in 1 Millijoule. This means the conversion factor from Millijoule to Calorie (th) is 0.0002390057.
What is the formula to convert Millijoule to Calorie (th)?
The formula to convert Millijoule to Calorie (th) is: cal = mJ × 0.0002390057. For example, to convert 10 Millijoule to Calorie (th), you would multiply 10 by 0.0002390057.
What is a Millijoule?
The millijoule (mJ) is a unit of energy and work. One millijoule equals 0.001 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 Millijoule?
The Millijoule is commonly used in energy calculations, engineering and science, education.
Related Energy Conversions
Cite this page
UnitConvertLab. (2026). Millijoule to Calorie (th) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/millijoule-to-calorie