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Flow Rate Conversion Formula:
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GPM (Gallons Per Minute) to CFM (Cubic Feet Per Minute) conversion is used to convert flow rates between liquid volume measurement (gallons) and gas volume measurement (cubic feet). This conversion is essential in various engineering and fluid dynamics applications.
The calculator uses the conversion formula:
Where:
Explanation: Since 1 US gallon equals 0.13368055555554628 cubic feet, multiplying GPM by this factor converts the flow rate to CFM.
Details: Accurate flow rate conversion is crucial in HVAC systems, hydraulic engineering, pump sizing, ventilation design, and various industrial applications where both liquid and gas flow measurements are involved.
Tips: Enter the flow rate in gallons per minute (GPM). The calculator will automatically convert it to cubic feet per minute (CFM). The default value is set to 20 GPM as per your request.
Q1: What is the difference between GPM and CFM?
A: GPM measures liquid flow rate in gallons per minute, while CFM measures gas or air flow rate in cubic feet per minute. They represent different volume units for different fluid types.
Q2: Why is the conversion factor not a round number?
A: The conversion factor is precise because 1 US gallon equals exactly 0.13368055555554628 cubic feet, based on the standard definition of these volume units.
Q3: Can this conversion be used for any fluid?
A: This conversion is purely volumetric and works for any fluid, but note that GPM is typically used for liquids while CFM is more common for gases.
Q4: How accurate is this conversion?
A: The conversion is mathematically exact since it's based on standard unit definitions. The accuracy depends on the precision of your input GPM value.
Q5: When would I need to convert GPM to CFM?
A: Common applications include HVAC system design, pump and compressor sizing, hydraulic calculations, and when working with systems that handle both liquid and gas phases.