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Flow Rate Converter

Enter any field to convert all units instantly. Reference: 1 GPM ≈ 3.785 L/min; 1 CFM ≈ 28.317 L/min

L/min
L/hr
m³/h
mL/min
GPM
CFM
Reference: 1 L/min = 60 L/hr = 0.06 m³/h = 1000 mL/min ≈ 0.2642 GPM ≈ 0.0353 CFM
Use Case

A cooling water system design spec requires 50 GPM, but the plant's flow meters read in L/min. The engineer needs to verify that the actual cooling flow meets the requirement, avoiding insufficient heat-exchange efficiency that degrades equipment life and process quality.

Example

Converting 50 GPM: / To L/min: 50 × 3.78541 = 189.3 L/min / To m³/h: 189.3 / 1000 × 60 = 11.36 m³/h / To mL/min: 189,300 mL/min / Flow meter reading ≥ 189 L/min meets the spec / Heat check: 189.3 L/min × 5°C ΔT × 0.07 kW/(L/min·°C) ≈ 66 kW cooling capacity

Further reading: Flow calculation for industrial cooling water systems
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