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Flow Rate Converter

Convert flow rate between liters per second, liters per minute, cubic meters per hour, gallons per minute, and cubic feet per minute.

Interactive calculator

Convert flow rate units

Compare liquid or air flow across liters, cubic meters, gallons, and cubic feet per unit time.

Results

Result (L/min)

189.2706

50 gpm = 189.2706 L/min

How to use it

  1. 01Enter the flow rate value you need to convert.
  2. 02Choose the current unit and the target unit.
  3. 03Read the converted result for your pump, pipe, or airflow scenario.

Result guide

  • Liters per second act as the base flow unit behind the conversion.
  • GPM is useful in many pump and plumbing contexts, while CFM is common for airflow.
  • The page supports both short-interval and hourly flow units for easier comparison.

About this calculator

Flow-rate conversion is useful in plumbing, pumps, irrigation, HVAC, and process work because water and air systems are often documented with different unit conventions.

A practical converter should include both liquid and air-style units so it can support a wider range of design and maintenance tasks.

Frequently asked questions

Why include both GPM and CFM?

Because liquid and airflow systems often use different unit traditions even though both are flow-rate problems.

When is m3/h useful?

It is often used in equipment specifications, building systems, and industrial references.

Can this be used for air and water both?

Yes. It converts the unit expression only and does not depend on the specific fluid.

DE
Per WHO guidelines / Peer-reviewed researchFormula version: 2026

Reviewed by Dr. Elena Rostova, MD, PhD

Medical Doctor & Clinical Nutrition Researcher

Reviews health index calculators, unit converter benchmarks, and mathematical models against WHO guidelines and peer-reviewed research.

Formula last verified: June 2026

Sources: Per WHO guidelines / Peer-reviewed research/Standard unit-conversion constants and base-unit references/Cross-checks against known engineering and metric conversion values

Disclaimer: Calculator results are for general reference and educational purposes only per WHO standards. Health indexes and mathematical models are not a substitute for professional medical diagnosis, clinical nutrition, or certified trade advice.

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