cfm/ft² to cfm/in² and cfm/in² to cfm/ft² Calculator

How to Calculate Between cfm/ft² and cfm/in²

The cfm/ft² to cfm/in² and cfm/in² to cfm/ft² Calculator converts between cubic feet per minute per square foot (cfm/ft²) and cubic feet per minute per square inch (cfm/in²) for air velocity measurements. The formulas are:

\( cfm/in^2 = \frac{cfm/ft^2}{144} \)
\( cfm/ft^2 = cfm/in^2 \times 144 \)

Where:

\( cfm/ft^2 \): Cubic feet per minute per square foot, a unit of air velocity.
\( cfm/in^2 \): Cubic feet per minute per square inch, a unit of air velocity.

Select the conversion direction, enter the input value, and calculate the result.

Note: The conversion factor 144 is derived from 1 ft² = 144 in².

Using the cfm/ft² and cfm/in² Mutual Conversion Calculator

This calculator is useful for HVAC design, ventilation rates, and air flow analysis, supporting bidirectional conversions between different imperial units.

Select the direction (cfm/ft² to cfm/in² or cfm/in² to cfm/ft²), input the value. The calculator outputs the converted value.

Example 1: For a value of 1 cfm/ft² to cfm/in².

Direction: cfm/ft² to cfm/in²
Input: \( 1 \)
Calculation: \( cfm/in^2 = 1 / 144 \approx 0.00694 \)
Result: \( 0.00694 \, \text{cfm/in²} \)

Example 2: For a value of 0.00694 cfm/in² to cfm/ft².

Direction: cfm/in² to cfm/ft²
Input: \( 0.00694 \)
Calculation: \( cfm/ft^2 = 0.00694 \times 144 \approx 1 \)
Result: \( 1.00000 \, \text{cfm/ft²} \)

Use this tool for quick bidirectional conversions in engineering or environmental applications.

Common FAQ

Below are frequently asked questions about cfm/ft² and cfm/in² conversions:

Q: What is cfm/ft²?
A: cfm/ft² stands for cubic feet per minute per square foot, a unit measuring air velocity in imperial systems, equivalent to feet per minute (fpm).
Q: What is cfm/in²?
A: cfm/in² stands for cubic feet per minute per square inch, another imperial unit measuring air velocity.
Q: Is the conversion always using 144?
A: Yes, this is the exact factor since 1 ft² = 144 in².
Q: How accurate is this calculator?
A: It provides precise results based on the formulas, rounded to 5 decimal places.
Q: Can negative values be used?
A: No, input values must be positive; invalid inputs leave the result blank.