What formula is used?

Weight = (π ÷ 4) × (OD² − ID²) × Length × Density, where ID = OD − 2 × wall thickness. All dimensions are converted to meters; multiplying the volume in m³ by 8960 kg/m³ gives kilograms.

What copper density does this calculator use?

A density of 8960 kg/m³ is used, which is the standard value for commercially pure copper (C11000, electrolytic tough pitch). Copper alloys such as brass or bronze have different densities and are not covered by this tool.

What is the difference between outer diameter and wall thickness?

Outer diameter (OD) is the total outside measurement of the tube. Wall thickness is how thick the tube wall is. Inner diameter (ID) equals OD minus twice the wall thickness. The calculator shows an error if the wall is too thick for the given OD.

Which units are supported?

Diameter and wall thickness accept mm, cm, or inches. Length accepts mm, cm, m, inches, or feet. All values are converted to meters before the calculation runs.

Why does my OD need to be greater than 2 × wall thickness?

If the wall thickness is equal to or greater than OD/2, the inner diameter would be zero or negative, which is physically impossible for a hollow tube. The calculator validates this and shows an error.

How does copper tube weight compare to aluminum?

Copper is about 3.3× denser than aluminum (8960 vs 2700 kg/m³). A copper tube of the same dimensions will weigh roughly 3.3 times more than an equivalent aluminum tube.

Copper Round Tube Weight Calculator

Name: Copper Round Tube Weight Calculator
Availability: InStock
Author: Nham Vu

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

Tube Dimensions

Outer Diameter (OD)

Wall Thickness

Length

Formula Reference

W = (π / 4) × (OD² − ID²) × L × ρ

Where OD = outer diameter (m), ID = OD − 2 × wall (m), L = length (m), ρ = 8960 kg/m³ (copper density), W = weight (kg).

Enter tube dimensions on the left and click Calculate.

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Summary

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

How it works

Enter the outer diameter (OD) of the tube and choose a unit (mm, cm, in).
Enter the wall thickness and choose a unit (mm, cm, in).
Enter the tube length and choose a unit (mm, cm, m, in, ft).
Click Calculate — the inner diameter is derived automatically as ID = OD − 2 × wall.
Weight is displayed in kilograms and pounds using the standard copper density of 8960 kg/m³.

Use cases

Estimating material weight for copper tube plumbing and HVAC installations.
Calculating shipping and freight weight for copper tubing orders.
Preparing a bill of materials for fabrication or purchasing.
Comparing wall thicknesses to balance conductivity, pressure rating, and weight.
Verifying structural load requirements before installation.
Quick field estimation of copper tube weight without manual calculation.
Determining copper scrap weight for recycling or material recovery.

Frequently Asked Questions

Last updated: 2026-07-16 · Reviewed by Nham Vu