Convert millijoule to kilowatt-hour
Please provide values below to convert millijoule [mJ] to kilowatt-hour [kW*h], or Convert kilowatt-hour to millijoule.
How to Convert Millijoule to Kilowatt-Hour
1 mJ = 2.77777777777778e-10 kW*h
Example: convert 15 mJ to kW*h:
15 mJ = 15 × 2.77777777777778e-10 kW*h = 4.16666666666667e-09 kW*h
Millijoule to Kilowatt-Hour Conversion Table
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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.
Kilowatt-Hour
A kilowatt-hour (kW·h) is a unit of energy equal to the energy transferred or used when a power of one kilowatt is sustained for one hour.
History/Origin
The kilowatt-hour originated in the late 19th century with the development of electrical power systems, becoming a standard unit for measuring electrical energy consumption and billing.
Current Use
It is widely used today in electricity billing, energy consumption monitoring, and in various engineering and scientific applications to quantify electrical energy usage.