Watt to Kilojoule per Hour Converter

A watt (W) is the SI unit of power, defined as one joule per second. Named after Scottish inventor James Watt, it represents the rate of energy transfer and is fundamental to all power measurements in the International System of Units.

The watt was named after James Watt in 1882 and became the SI unit of power in 1960. It replaced various earlier power units and provided a unified measure based on the fundamental relationship between energy and time, becoming universal in scientific and technical applications.

Watts are universally used for all power measurements, from small electronic devices to large machinery. They're fundamental in electrical engineering, physics, energy efficiency ratings, and form the basis for all other power unit measurements.

Kilojoule per hour (kJ/h) is a unit of power representing the rate of energy transfer of one kilojoule per hour. It provides a convenient scale for moderate power measurements in energy system analysis and thermal applications.

Kilojoule per hour developed as a practical unit for energy system analysis and thermal calculations. It provided an appropriate scale for describing power in terms of energy per time, particularly useful in heating and cooling system analysis.

Kilojoule per hour is used in energy system analysis, thermal calculations, and heating/cooling applications. It's found in energy efficiency calculations, thermal system design, and applications where energy rates are more intuitive than electrical power units.