1. What is the FPS to CFM Conversion?

The FPS (feet per second) to CFM (cubic feet per minute) conversion calculates the volumetric flow rate of air or gas based on its velocity and the cross-sectional area of flow.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( FPS \) — Velocity in feet per second
• \( Area \) — Cross-sectional area in square feet
• \( 60 \) — Conversion factor from seconds to minutes

Explanation: The equation converts linear velocity (FPS) to volumetric flow rate (CFM) by multiplying by the flow area and converting time units.

3. Importance of CFM Calculation

Details: CFM is crucial for HVAC system design, ventilation requirements, industrial process calculations, and airflow measurement in various engineering applications.

4. Using the Calculator

Tips: Enter velocity in feet per second and area in square feet. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between FPS and CFM?
A: FPS measures velocity (speed), while CFM measures volumetric flow rate (quantity of air moving per minute).

Q2: How do I measure the area for this calculation?
A: Measure the cross-sectional area perpendicular to the airflow direction (e.g., duct area for HVAC systems).

Q3: Can I use this for liquid flow calculations?
A: While the principle is similar, liquid flow is typically measured in GPM (gallons per minute) rather than CFM.

Q4: What's a typical CFM range for residential HVAC?
A: Typically 350-400 CFM per ton of cooling capacity, but exact requirements depend on the system design.

Q5: How does air density affect this calculation?
A: This simple calculation assumes standard air density. For precise calculations at different temperatures/pressures, additional corrections may be needed.