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cfm/ft² to l/s/dm² and l/s/dm² to cfm/ft² Calculator

How to Calculate Between cfm/ft² and l/s/dm²

The cfm/ft² to l/s/dm² and l/s/dm² to cfm/ft² Calculator converts between cubic feet per minute per square foot (cfm/ft²) and liters per second per square decimeter (l/s/dm²) for air velocity measurements. The formulas are:


\( l/s/dm^2 = cfm/ft^2 \times 0.0508 \)
\( cfm/ft^2 = \frac{l/s/dm^2}{0.0508} \)

Where:

  • \( cfm/ft^2 \): Cubic feet per minute per square foot, a unit of air velocity.
  • \( l/s/dm^2 \): Liters per second per square decimeter, a unit of air velocity.

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

Note: The conversion factor 0.0508 is derived from 1 cfm = 0.47194745 l/s and 1 ft² ≈ 9.2903 dm².

Using the cfm/ft² and l/s/dm² Mutual Conversion Calculator

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

Select the direction (cfm/ft² to l/s/dm² or l/s/dm² to cfm/ft²), input the value. The calculator outputs the converted value.

Example 1: For a value of 100 cfm/ft² to l/s/dm².


  1. Direction: cfm/ft² to l/s/dm²
  2. Input: \( 100 \)
  3. Calculation: \( l/s/dm^2 = 100 \times 0.0508 = 5.08 \)
  4. Result: \( 5.080 \, \text{l/s/dm²} \)

Example 2: For a value of 5.08 l/s/dm² to cfm/ft².


  1. Direction: l/s/dm² to cfm/ft²
  2. Input: \( 5.08 \)
  3. Calculation: \( cfm/ft^2 = 5.08 / 0.0508 \approx 100 \)
  4. Result: \( 100.000 \, \text{cfm/ft²} \)

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

Common FAQ

Below are frequently asked questions about cfm/ft² and l/s/dm² 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.
  • Q: What is l/s/dm²?
    A: l/s/dm² stands for liters per second per square decimeter, a metric unit measuring air velocity.
  • Q: Is the conversion always using 0.0508?
    A: Yes, this is the standard factor derived from base unit conversions.
  • Q: How accurate is this calculator?
    A: It provides precise results based on the formulas, rounded to 3 decimal places.
  • Q: Can negative values be used?
    A: No, input values must be positive; invalid inputs leave the result blank.
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