Flow - Mass Converter
Convert mass flow rate between kilograms, grams, pounds and tonnes per unit time.
Written by Rahman · Last reviewed
Quick answer
Mass flow rate is mass moved per unit time, in kilograms per second. One pound per second is 0.4536 kg/s and one tonne per hour is 0.2778 kg/s. Mass flow is preferred over volumetric flow for gases, and anywhere temperature or pressure changes the density along the path.
| Kilogram per second (kg/s) | 1 |
| Gram per second (g/s) | 1000 |
| Kilogram per minute (kg/min) | 59.99999988 |
| Kilogram per hour (kg/h) | 3599.999971 |
| Pound per second (lb/s) | 2.204622622 |
| Pound per minute (lb/min) | 132.2773579 |
| Pound per hour (lb/h) | 7936.641474 |
| Tonne per hour (t/h) | 3.6 |
About the Flow - Mass Converter
Mass flow rate measures the mass of a substance passing a point per unit of time, such as kilograms per second. Unlike volumetric flow, it does not change with temperature or pressure.
It is used in process engineering, combustion and any application where the amount of matter matters more than its volume.
Frequently Asked Questions
What is mass flow rate?
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It is the mass of material moving past a point per unit of time, measured in kilograms per second.
Why use mass flow instead of volume flow?
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Mass does not change with temperature or pressure, so mass flow is more reliable for gases and precise process control.
How are mass and volume flow related?
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Mass flow equals volumetric flow multiplied by the fluid’s density.