Home Back

GI Square Pipe Weight Calculator

GI Square Pipe Weight Formula:

\[ W = \rho \times (a^2 - b^2) \times L \]

kg/m³
meters
meters
meters

1. What is a GI Square Pipe Weight Calculator?

Definition: This calculator estimates the weight of galvanized iron (GI) square pipes based on their dimensions and material density.

Purpose: It helps engineers, construction professionals, and metal fabricators determine the weight of square pipes for structural calculations and material planning.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \rho \times (a^2 - b^2) \times L \]

Where:

  • \( W \) — Weight of the pipe (kilograms)
  • \( \rho \) — Density of the material (kg/m³)
  • \( a \) — Outer side length of the square pipe (meters)
  • \( b \) — Inner side length of the square pipe (meters)
  • \( L \) — Length of the pipe (meters)

Explanation: The formula calculates the cross-sectional area (outer area minus inner area) and multiplies by length and density to get weight.

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural integrity, transportation planning, cost estimation, and load-bearing capacity assessments.

4. Using the Calculator

Tips:

  • Enter material density (default 7850 kg/m³ for steel)
  • Measure outer and inner dimensions in meters
  • Specify pipe length in meters
  • For solid bars, set inner dimension (b) to 0

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for GI pipes?
A: Galvanized iron pipes typically have a density of about 7850 kg/m³ (same as steel), as the zinc coating adds minimal weight.

Q2: How do I measure the pipe dimensions?
A: Use calipers for accurate measurements. Outer dimension (a) is side-to-side, inner dimension (b) is the hollow space.

Q3: What if my pipe is rectangular rather than square?
A: Use a different formula: W = ρ × (a×c - b×d) × L where a,c are outer dimensions and b,d are inner dimensions.

Q4: Does this account for the zinc coating?
A: The density value already accounts for the coating. For precise calculations, you may adjust density slightly higher.

Q5: How do I convert the result to pounds?
A: Multiply the result in kg by 2.20462 to get pounds.

GI Square Pipe Weight Calculator© - All Rights Reserved 2025