Psi To Cfm Calculator

PSI to CFM Formula:

\[ CFM = \frac{PSI \times Area}{Time} \]

CFM:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is PSI to CFM Conversion?

PSI to CFM conversion calculates the volumetric flow rate of air (Cubic Feet per Minute) based on pressure (Pounds per Square Inch), cross-sectional area, and time. This is essential for sizing compressors, ventilation systems, and pneumatic tools.

2. How Does the Calculator Work?

The calculator uses the PSI to CFM formula:

\[ CFM = \frac{PSI \times Area}{Time} \]

Where:

\( PSI \) — Pressure in pounds per square inch
\( Area \) — Cross-sectional area in square inches
\( Time \) — Time in minutes
\( CFM \) — Cubic feet per minute (result)

Explanation: This formula provides an approximate conversion from pressure to volumetric flow rate, useful for basic air flow calculations in pneumatic systems.

3. Importance of Air Flow Calculation

Details: Accurate CFM calculation is crucial for proper compressor selection, ensuring adequate air supply for tools, optimizing ventilation systems, and maintaining efficient pneumatic operations.

4. Using the Calculator

Tips: Enter PSI value (pressure), area in square inches, and time in minutes. All values must be positive numbers. The calculator will provide CFM (cubic feet per minute) as output.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between PSI and CFM?
A: PSI measures pressure (force per unit area), while CFM measures volumetric flow rate (volume per unit time). They represent different aspects of air flow characteristics.

Q2: Is this formula exact for all applications?
A: This provides an approximate calculation. Actual CFM can vary based on temperature, humidity, pipe friction, and system efficiency.

Q3: What are typical CFM requirements for common tools?
A: Air tools typically require 2-10 CFM, while larger industrial equipment may need 50+ CFM. Always check manufacturer specifications.

Q4: How does temperature affect CFM calculations?
A: Higher temperatures reduce air density, which can affect actual CFM delivery. For precise calculations, temperature compensation may be needed.

Q5: Can I use this for liquid flow calculations?
A: No, this formula is specifically for air flow. Liquid flow calculations require different formulas accounting for fluid density and viscosity.