kilogram/hour [kg/h] Unit Converter

Definition of kilogram/hour [kg/h] unit

Kilogram per hour (kg/h) is a mass-flow-rate unit expressing how much mass passes through a process, pipe, or system during one hour. It equals one kilogram transferred or consumed each hour and is an SI-derived rate unit.

History of kilogram/hour [kg/h] unit

The kilogram per hour developed from the metric system’s adoption of the kilogram as a fundamental measure of mass and the hour as a practical time interval. Although the SI base unit of time is the second, engineers and industry commonly retain hours for production and consumption rates. Written as kg/h, the unit became widespread alongside mechanized manufacturing, chemical processing, transportation, and fuel measurement. International standards and engineering practice recognize it as a convenient mass-flow expression, while scientific calculations may convert it to kilograms per second.

Applications of kilogram/hour [kg/h] unit

Kilograms per hour is used to specify material throughput in conveyors, feeders, mills, and chemical plants; fuel consumption in engines and boilers; evaporation or drying rates; and powder, grain, or waste handling. For example, a process may feed 250 kg/h of powder, while an industrial burner may consume 40 kg/h of fuel. It is useful when hourly production capacity matters.

Complete list of kilogram/hour [kg/h] unit conversion