Flow Rate Conversion Formula:
From: | To: |
Flow rate conversion between gallons per minute (GPM) and cubic feet per second (CFS) is essential in hydraulic engineering, water management, and fluid dynamics applications. This conversion allows professionals to work with different measurement systems commonly used in various industries.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor is derived from the relationship between gallons and cubic feet, and minutes and seconds (1 gallon = 0.133681 cubic feet, 1 minute = 60 seconds).
Details: Accurate flow rate conversion is crucial for designing water distribution systems, calculating pump capacities, environmental flow assessments, and ensuring compliance with engineering standards that may use different measurement units.
Tips: Enter the flow rate in gallons per minute (GPM). The calculator will automatically convert it to cubic feet per second (CFS). The default value of 10,000 GPM is pre-filled for quick conversion.
Q1: Why convert between GPM and CFS?
A: Different industries and regions use different measurement systems. GPM is common in US plumbing, while CFS is used in civil engineering and environmental flow measurements.
Q2: How accurate is the conversion factor?
A: The conversion factor 0.0022280092592591046 is precise and based on standard US customary unit definitions.
Q3: Can I convert CFS back to GPM?
A: Yes, use the inverse formula: GPM = CFS ÷ 0.0022280092592591046 or GPM = CFS × 448.83116883117.
Q4: What are typical flow rates in GPM and CFS?
A: Household faucets: 1-3 GPM (0.002-0.007 CFS), Fire hydrants: 500-1500 GPM (1.1-3.3 CFS), Large rivers: 10,000+ CFS (4.5+ million GPM).
Q5: Are there different gallon definitions?
A: This calculator uses US gallons (3.785 liters). Imperial gallons (4.546 liters) would require a different conversion factor.