Volume of Hollow Square Tube

Hollow Square Tube Volume Formula:

\[ V = L \times (S^2 - s^2) \]

Volume (cubic units):

Definition: This calculator computes the volume of a hollow square tube based on its outer dimensions, inner dimensions, and length.

Purpose: It helps engineers, architects, and fabricators determine the material volume for hollow square tube structures.

The calculator uses the formula:

\[ V = L \times (S^2 - s^2) \]

Where:

Explanation: The formula calculates the difference between outer and inner cross-sectional areas, then multiplies by length to get volume.

Details: Accurate volume calculations are essential for material estimation, weight calculations, structural analysis, and cost estimation.

Tips: Enter the outer side length, inner side length (must be smaller than outer), and tube length. All values must be > 0.

Q1: What units should I use?
A: Any consistent unit (inches, feet, cm, meters). The result will be in cubic units of your input.

Q2: Can inner dimension be zero?
A: No, this would make it a solid bar. For solid bars, use \( V = L \times S^2 \).

Q3: How do I calculate weight from volume?
A: Multiply volume by material density (e.g., 0.284 lb/in³ for steel).

Q4: What if my inner dimension is larger than outer?
A: The calculator won't process invalid inputs where inner ≥ outer.

Q5: Does this account for wall thickness variations?
A: No, this assumes uniform wall thickness. For tapered tubes, use different methods.