Convert kilocalorie (th) to millijoule
Please provide values below to convert kilocalorie (th) [kcal (th)] to millijoule [mJ], or Convert millijoule to kilocalorie (th).
How to Convert Kilocalorie (Th) to Millijoule
1 kcal (th) = 4184000 mJ
Example: convert 15 kcal (th) to mJ:
15 kcal (th) = 15 × 4184000 mJ = 62760000 mJ
Kilocalorie (Th) to Millijoule Conversion Table
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Kilocalorie (Th)
A kilocalorie (kcal) is a unit of energy equal to 1,000 calories, commonly used to measure the energy content of food and beverages.
History/Origin
The kilocalorie originated in the 19th century as a unit to quantify heat energy, especially in nutrition and thermodynamics. It was widely adopted in the early 20th century for dietary energy measurement.
Current Use
Today, the kilocalorie is primarily used in nutrition to express the energy content of food and drinks, although it is often simply called a 'calorie' in everyday language.
Millijoule
A millijoule (mJ) is a unit of energy equal to one thousandth of a joule, where 1 joule equals 1 newton meter or 1 kg·m²/s².
History/Origin
The millijoule is derived from the SI base unit joule, with the prefix 'milli' indicating a factor of 10⁻³. It has been used in scientific and engineering contexts to measure small amounts of energy, especially in fields like electronics and biomechanics.
Current Use
The millijoule is commonly used today to quantify small energy quantities in electronics, biomedical applications, and energy measurements where precision at a small scale is required.