Convert kilocalorie (th) to microjoule
Please provide values below to convert kilocalorie (th) [kcal (th)] to microjoule [µJ], or Convert microjoule to kilocalorie (th).
How to Convert Kilocalorie (Th) to Microjoule
1 kcal (th) = 4184000000 µJ
Example: convert 15 kcal (th) to µJ:
15 kcal (th) = 15 × 4184000000 µJ = 62760000000 µJ
Kilocalorie (Th) to Microjoule Conversion Table
| kilocalorie (th) | microjoule |
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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.
Microjoule
A microjoule (µJ) is a unit of energy equal to one millionth of a joule, used to measure small amounts of energy.
History/Origin
The microjoule was introduced as part of the metric system to facilitate the measurement of very small energy quantities, especially in scientific and engineering contexts, with the adoption of the International System of Units (SI).
Current Use
Microjoules are commonly used in fields such as electronics, physics, and biology to quantify small energy transfers, signals, or reactions, often in research and technical applications.