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Calculate Pipe Weight per Foot

Pipe Weight Formula:

\[ W = \frac{\rho \times \pi \times (OD^2 - ID^2) \times L}{4 \times 0.3048} \]

kg/m³
m
m
m
kg/ft

1. What is Pipe Weight per Foot Calculator?

Definition: This calculator estimates the weight per foot of a pipe based on its dimensions and material density.

Purpose: It helps engineers, plumbers, and construction professionals determine pipe weight for structural calculations and material handling.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \frac{\rho \times \pi \times (OD^2 - ID^2) \times L}{4 \times 0.3048} \]

Where:

  • \( W \) — Weight per foot (kg/ft)
  • \( \rho \) — Material density (kg/m³)
  • \( OD \) — Outer diameter (meters)
  • \( ID \) — Inner diameter (meters)
  • \( L \) — Length (meters)
  • \( 0.3048 \) — Conversion factor (meters to feet)

Explanation: The formula calculates the cross-sectional area of the pipe wall, multiplies by length and density to get mass, then converts to weight per foot.

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural support design, transportation planning, and installation requirements.

4. Using the Calculator

Tips: Enter material density (default 7850 kg/m³ for steel), outer diameter, inner diameter (0 for solid pipe), and length (default 1m). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical density for steel pipes?
A: Most carbon steel pipes have a density of about 7850 kg/m³. Stainless steel is typically 8000 kg/m³.

Q2: How do I calculate for a solid rod?
A: Set the inner diameter (ID) to 0 in the calculator.

Q3: Why is length included if calculating per foot?
A: The formula calculates total weight first, then converts to per-foot basis. Length is included for dimensional consistency.

Q4: Can I use inches instead of meters?
A: Convert inches to meters (1 inch = 0.0254 meters) before entering values for accurate results.

Q5: How accurate is this calculation?
A: It provides theoretical weight. Actual weight may vary slightly due to manufacturing tolerances and material variations.

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