What zinc density does this tool use?

The calculator uses the standard density of commercially pure zinc: 7.133 g/cm³ (7133 kg/m³). This is the widely accepted value for pure Zn metal.

How is the inner diameter determined?

Inner diameter (ID) = Outer diameter (OD) − 2 × wall thickness. The wall thickness is the tube's side thickness, so it reduces the bore from both sides.

What formula is used?

Volume = π/4 × (OD² − ID²) × length. Weight = volume × density (7.133 g/cm³). All dimensions are converted to centimeters before calculation.

Does this work for zinc alloys?

This tool uses the density of commercially pure zinc. Zinc alloys such as Zamak have slightly different densities (typically 6.6–6.9 g/cm³), so results may differ slightly. Use as an engineering estimate.

What if my wall thickness is larger than the outer radius?

The calculator will show an error if the wall thickness is equal to or greater than half the outer diameter, because that would leave zero or negative bore.

Zinc Round Tube Weight Calculator

Enter outer diameter, wall thickness, and length of a zinc round tube to instantly get its weight in kg and lb.

Tube Dimensions

Unit System

Outer Diameter (OD)

Wall Thickness

Inner Diameter (ID) — auto

—

Length

Quantity

Weight Result

Enter dimensions and click Calculate

Summary

Enter outer diameter, wall thickness, and length of a zinc round tube to instantly get its weight in kg and lb.

How it works

Select your preferred unit system: metric (mm, cm, m) or imperial (in, ft).
Enter the outer diameter of the zinc tube.
Enter the wall thickness — the inner diameter is calculated automatically as OD minus 2 × wall thickness.
Enter the length of the tube and, optionally, a quantity.
The calculator computes volume using π/4 × (OD² − ID²) × length.
Weight is displayed instantly in kilograms and pounds using zinc density of 7.133 g/cm³.

Use cases

Estimate material cost and weight for zinc tube stock orders.
Calculate shipping weight of zinc pipe shipments.
Verify weight specifications in engineering or manufacturing drawings.
Compare wall thickness options for design trade-offs.
Procurement planning for zinc alloy tube components.
Structural calculations involving zinc hollow sections.
Educational use in materials science and metallurgy courses.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu