1. What is the CFM to FPS Conversion?

The CFM (Cubic Feet per Minute) to FPS (Feet per Second) conversion calculates the velocity of air flow through a duct based on the volume flow rate and cross-sectional area of the duct.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( CFM \) — Cubic Feet per Minute (ft³/min)
• \( Duct\ Area \) — Cross-sectional area of the duct (ft²)
• \( FPS \) — Feet per Second (ft/s)

Explanation: This formula converts volume flow rate (CFM) to linear velocity (FPS) by dividing by the cross-sectional area of the duct.

3. Importance of FPS Calculation

Details: Calculating FPS is important for PC cooling system design to ensure adequate air flow velocity for efficient heat dissipation while maintaining acceptable noise levels.

4. Using the Calculator

Tips: Enter CFM in ft³/min and duct area in ft². Both values must be positive numbers. For circular ducts, area = π × (diameter/2)².

5. Frequently Asked Questions (FAQ)

Q1: What is a good FPS range for PC cooling?
A: Typically 5-15 FPS is effective for PC cooling, balancing cooling efficiency with noise levels.

Q2: How do I measure duct area?
A: For rectangular ducts: width × height. For circular ducts: π × radius². All measurements in feet.

Q3: Why convert CFM to FPS?
A: FPS gives the actual air speed, which is important for understanding how quickly air moves across components for effective cooling.

Q4: Does higher FPS always mean better cooling?
A: Not necessarily. While higher FPS can improve heat transfer, it also increases noise and may cause turbulence that reduces efficiency.

Q5: Can I use this for non-PC applications?
A: Yes, this conversion applies to any air flow calculation where you need to convert volume flow rate to linear velocity.