Flow Rate Conversion Relationship
The flow rate in cubic feet per minute (CFM) can be converted from gallons per minute (GPM) using the following formula:
CFM = GPM × 0.1336805556
Flow Rate Input:
Flow rate measures the volume of fluid passing through a point per unit time. Common units include:
- GPM (Gallons per Minute): Standard in the US for water flow.
- GPH (Gallons per Hour): Used for slower flows.
- GPD (Gallons per Day): Common in daily water usage.
- L/min (Liters per Minute): Metric unit for medium flows.
- L/s (Liters per Second): Metric unit for high flows.
- L/h (Liters per Hour): Metric unit for low flows.
- m³/h (Cubic Meters per Hour): Used in industrial settings.
- m³/s (Cubic Meters per Second): For large-scale flows.
- CFS (Cubic Feet per Second): Common in hydrology.
- CFM (Cubic Feet per Minute): Widely used in HVAC and air flow systems.
Practical Applications
This converter is useful in various scenarios:
- HVAC: Convert GPM from water systems to CFM for air flow calculations.
- Irrigation: Standardize flow rates between liquid and gas units.
- Engineering: Compare pump outputs with ventilation requirements.
Example Calculation
If the flow rate is 100 GPM, the conversion to CFM would be:
CFM = 100 × 0.1336805556 = 13.3681 ft³/min
Similarly:
- GPH = 13.3681 × 7.480519481 ≈ 100 GPH
- L/min = 13.3681 × 28.316846592 ≈ 378.5412 L/min
- m³/h = 13.3681 × 0.028316846592 × 60 ≈ 22.7125 m³/h
- CFS = 13.3681 ÷ 60 ≈ 0.2228 ft³/s
Conversion Constants
Key conversion factors:
- 1 Gallon = 0.1336805556 ft³
- 1 ft³ = 28.316846592 Liters
- 1 ft³ = 0.028316846592 m³
- 1 minute = 60 seconds
- 1 day = 1440 minutes
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