LB per hour to SCFM Calculator

How to Use the Calculator

1. Enter the mass flow rate in pounds per hour (Lbs per hour)
2. Input the temperature in degrees Fahrenheit (°F)
3. Provide the absolute pressure in pounds per square inch absolute (PSIA)
4. The molecular weight of the gas (default is 28.97 for air, you can change it if needed)
5. Click the "Calculate" button to get the SCFM value
6. Use the "Reset" button to clear all inputs and start over

Understanding SCFM

SCFM (Standard Cubic Feet per Minute) is a unit of flow rate used in industrial applications. It represents the volume of gas flow at standard conditions (14.7 PSIA and 60°F or 15.6°C).

When to Use This Calculator

This calculator is useful in industries such as:

• Aerospace engineering
• Chemical processing
• Compressed air systems
• Gas transportation
• HVAC and refrigeration

Example Calculation

For example, if you have a gas flow of 500 Lbs per hour at 70°F and 14.5 PSIA, with a molecular weight of 30:

SCFM = (500 × 60) ÷ (30 × 14.5 × (70 + 459.67) ÷ 528.67) ≈ 44.55 SCFM