Mass Flow Rate Converters

Pick a family to convert between common mass flow rate units using exact base relationships.

Available converter families

Common mass flow rate unit mirror pairs

Every direction below is a dedicated page so each conversion has a direct mirror link.

kg/s to kg/h kg/h to kg/s kg/s to g/s g/s to kg/s kg/s to g/min g/min to kg/s kg/s to lb/s lb/s to kg/s kg/s to lb/h lb/h to kg/s kg/h to g/s g/s to kg/h kg/h to g/min g/min to kg/h kg/h to lb/s lb/s to kg/h kg/h to lb/h lb/h to kg/h g/s to g/min g/min to g/s g/s to lb/s lb/s to g/s g/s to lb/h lb/h to g/s g/min to lb/s lb/s to g/min g/min to lb/h lb/h to g/min lb/s to lb/h lb/h to lb/s

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Explanation

Mass flow rate expresses mass per unit time. These factors are normalized through kilograms per second (kg/s) so SI units (kg/s, kg/h, g/s, g/min) and imperial units (lb/s, lb/h) stay consistent across engineering use cases.

How to use this hub

  1. Choose a converter family.
  2. If converting to/from grams from a volume unit, select an ingredient.
  3. For pure unit changes (volume↔volume or weight↔weight), use universal conversions.

If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.

Frequently Asked Questions

What is mass flow rate used for?

Mass flow rate is used to quantify how much mass moves through a system per unit time in process engineering, HVAC, combustion, and fluid handling.

Why is lb/h common in engineering?

lb/h is widely used in US customary workflows for equipment ratings and process specifications where hourly throughput is practical.

How do I switch direction?

Use the switch button to navigate directly to the mirror page for the reverse conversion.