Flow Rate Converter
Convert volumetric flow rates between Liters/min (LPM), Gallons/min (GPM), Cubic Feet/min (CFM), and m³/hour.
All Equivalent Flow Rates
Understanding Volumetric Flow Rate
Volumetric flow rate measures the volume of fluid (liquid or gas) passing through a given surface per unit of time ($Q = V / t$). Plumbing systems commonly rate pumps in gallons per minute (GPM) or liters per minute (LPM), while heating and air conditioning (HVAC) systems rate airflow in cubic feet per minute (CFM) or cubic meters per hour ($m^3/h$).
Frequently Asked Questions
How do you convert US GPM to Liters per minute?
Multiply GPM by 3.78541. For example, a 10 GPM water pump discharges 37.85 Liters of water per minute.
How do you convert CFM to m³/h?
Multiply CFM by 1.69901. For example, an exhaust fan rated at 500 CFM moves 849.5 m³/h of air.