Convert millijoule to kilojoule
Please provide values below to convert millijoule [mJ] to kilojoule [kJ], or Convert kilojoule to millijoule.
How to Convert Millijoule to Kilojoule
1 mJ = 1e-06 kJ
Example: convert 15 mJ to kJ:
15 mJ = 15 × 1e-06 kJ = 1.5e-05 kJ
Millijoule to Kilojoule Conversion Table
| millijoule | kilojoule |
|---|
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.
Kilojoule
A kilojoule (kJ) is a unit of energy equal to 1,000 joules, used to quantify energy transfer or work done.
History/Origin
The kilojoule was introduced as part of the International System of Units (SI) to provide a convenient scale for measuring energy, especially in fields like nutrition and physics, replacing the joule for larger quantities.
Current Use
The kilojoule is widely used in nutrition to express food energy content, in physics and engineering to measure energy transfer, and in various scientific and industrial applications within the 'Energy' converter category.