Home
Back
Flow Rate Conversion Formula:
| From: | To: |
GPM to CFS conversion is used to transform flow rate measurements from gallons per minute to cubic feet per second. This conversion is essential in hydraulic engineering, water resource management, and fluid dynamics applications.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor is derived from the relationship between volume units (1 gallon = 0.133681 cubic feet) and time units (1 minute = 60 seconds).
Details: Accurate flow rate conversion is crucial for engineering calculations, pipe sizing, pump selection, irrigation system design, and environmental flow assessments where different measurement units are used.
Tips: Enter the flow rate in gallons per minute (GPM). The value must be non-negative. The calculator will automatically compute the equivalent flow rate in cubic feet per second (CFS).
Q1: Why convert between GPM and CFS?
A: Different industries and regions use different flow rate units. Conversion ensures consistency in calculations and communication between engineering disciplines.
Q2: What is the conversion factor based on?
A: The factor comes from: 1 gallon = 0.133681 cubic feet and 1 minute = 60 seconds, so 1 GPM = 0.133681/60 = 0.002228 CFS.
Q3: When is CFS preferred over GPM?
A: CFS is commonly used in civil engineering, river flow measurements, and large-scale water projects, while GPM is often used in plumbing and smaller hydraulic systems.
Q4: Are there limitations to this conversion?
A: This conversion is exact for water and similar density fluids. For fluids with significantly different densities, additional factors may be needed.
Q5: Can this calculator be used for reverse conversion?
A: For CFS to GPM conversion, use the inverse factor: 1 CFS = 448.831 GPM, or divide the CFS value by 0.0022280092592591046.