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Mass Flow Rate Converter

Convert mass flow rates between kg/s, kg/min, kg/h, lb/s, lb/min and lb/h.

Use the tool

Enter your values below. Results are calculated in your browser.

About this Mass Flow Rate Converter

Mass Flow Rate Converter translates common engineering mass-per-time units across metric and pound-based systems.

Formula or method

All rates are normalized to kilograms per second, then converted to the selected target rate.

Example

60 kg/min = 1 kg/s.

Common uses

  • Convert kg/h to kg/s.
  • Translate lb/min to kg/min.
  • Compare process mass-flow specifications.

How to use this tool

  1. Enter the values or text requested by the calculator.
  2. Choose units or options when the tool provides them.
  3. Select the calculation button and review the result.
  4. Use the formula, example and notes on this page to check whether the result fits your situation.

Important note

Mass flow is amount of mass per time; it is different from volumetric flow unless density is also known.

Frequently asked questions

Can mass flow be converted directly to volume flow?

Not without material density and conditions.

Does lb mean pound-mass here?

Yes. The pound units represent mass flow, not pound-force.