Convert kilowatt-hour to millijoule
Please provide values below to convert kilowatt-hour [kW*h] to millijoule [mJ], or Convert millijoule to kilowatt-hour.
How to Convert Kilowatt-Hour to Millijoule
1 kW*h = 3600000000 mJ
Example: convert 15 kW*h to mJ:
15 kW*h = 15 × 3600000000 mJ = 54000000000 mJ
Kilowatt-Hour to Millijoule Conversion Table
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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.
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.