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
| From | To |
|---|---|
| 1 Kilogram per Second | 2.204623 Pound per Second |
| 1 Pound per Second | 0.4535924 Kilogram per Second |
| 1 Gram per Second | 3.6 Kilogram per Hour |
| 10 Kilogram per Hour | 22.04623 Pound per Hour |
| 100 Pound per Hour | 12.59979 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.