How to Calculate Between Btu/lbm and ft²/s²

The Btu/lbm to ft²/s² and ft²/s² to Btu/lbm Calculator converts between British Thermal Units per Pound Mass (Btu/lbm) and square feet per second squared (ft²/s²) for energy per unit mass in engineering contexts. The formulas are:

Where:

• \( Btu/lbm \): British Thermal Units per pound mass, a unit of specific energy.
• \( ft^2/s^2 \): Square feet per second squared, a unit derived from gravitational acceleration in imperial units.

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

Using the Btu/lbm and ft²/s² Mutual Conversion Calculator

This calculator is useful for thermodynamics, fluid mechanics, or aerospace engineering, such as converting specific energy units, supporting bidirectional conversions.

Select the direction (Btu/lbm to ft²/s² or ft²/s² to Btu/lbm), input the value. The calculator outputs the converted value.

Example 1: For a specific energy of 1 Btu/lbm to ft²/s².

1. Direction: Btu/lbm to ft²/s²
2. Input: \( 1 \)
3. Calculation: \( ft^2/s^2 = 1 \times 25037 = 25037 \)
4. Result: \( 25037 \, \text{ft}^2/s^2 \)

Example 2: For a value of 50000 ft²/s² to Btu/lbm.

1. Direction: ft²/s² to Btu/lbm
2. Input: \( 50000 \)
3. Calculation: \( Btu/lbm = 50000 / 25037 \approx 1.996 \)
4. Result: \( 1.996 \, \text{Btu/lbm} \)

Use this tool for quick bidirectional conversions in engineering analysis.

Common FAQ

Below are frequently asked questions about Btu/lbm and ft²/s² conversions:

• Q: What is Btu/lbm?
  A: Btu/lbm stands for British Thermal Units per pound mass, a unit of specific energy in imperial systems.
• Q: What is ft²/s²?
  A: ft²/s² stands for square feet per second squared, often related to energy via g_c in imperial units.
• Q: Is the conversion always 1 Btu/lbm = 25037 ft²/s²?
  A: Yes, based on standard imperial unit conversions where 1 Btu/lbm ≈ 25037 ft²/s².
• Q: How accurate is this calculator?
  A: It provides precise results based on the formulas, rounded appropriately (0 decimals for ft²/s², 5 for Btu/lbm).
• Q: Can negative values be used?
  A: No, input values must be positive; invalid inputs leave the result blank.