UnitCon

Mass Flow Rate

Mass flow rate measures how much mass passes a point in a given amount of time. It is especially useful when fluid density changes with pressure or temperature, such as in gases and steam. This converter helps compare SI and customary mass-flow units. It is common in chemical engineering, aerospace, and process work.

Common conversions

FromTo
1 Kilogram per Second2.204623 Pound per Second
1 Pound per Second0.4535924 Kilogram per Second
1 Gram per Second3.6 Kilogram per Hour
10 Kilogram per Hour22.04623 Pound per Hour
100 Pound per Hour12.59979 Gram per Second

Frequently asked questions

Mass flow rate is the amount of mass moving past a location each second, minute, or hour. It differs from volumetric flow because density is already built into the value.

It is preferred when density changes significantly, especially with gases, steam, and compressible fluids. Engineers use it when conservation of mass matters more than occupied volume.

The SI unit is kilograms per second. Smaller or larger process systems may use g/s, kg/min, or kg/h in practice.

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