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 the grade density gives kilograms.

What titanium grades and densities are supported?

Grade 1 and Grade 2 (commercially pure titanium) use 4510 kg/m³. Grade 5 (Ti-6Al-4V, the most common aerospace alloy) uses 4430 kg/m³. Grade 9 (Ti-3Al-2.5V, common in bicycle and medical tubing) uses 4480 kg/m³. Select the grade that matches your material certificate.

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 equals or exceeds 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 titanium weight compare to steel or aluminum?

Titanium (≈ 4430–4510 kg/m³) is roughly 57% the weight of steel (7850 kg/m³) and about 67% heavier than aluminum (2700 kg/m³). It offers an excellent strength-to-weight ratio, making it popular in aerospace and medical applications.

Titanium Round Tube Weight Calculator

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

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

Tube Dimensions

Titanium Grade

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 = titanium density (kg/m³ by grade), W = weight (kg).

Enter tube dimensions on the left and click Calculate.

Copied!

Summary

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

How it works

Select the titanium grade to set the correct density (Grade 1/2, Grade 5 Ti-6Al-4V, or Grade 9).
Enter the outer diameter (OD) of the tube and choose a unit (mm, cm, or in).
Enter the wall thickness and choose a unit (mm, cm, or in).
Enter the tube length and choose a unit (mm, cm, m, in, or ft).
Click Calculate — the inner diameter is derived automatically as ID = OD − 2 × wall.
Weight is displayed in kilograms and pounds with a full breakdown of dimensions and volume.

Use cases

Estimating material weight for titanium tube framing and aerospace structural components.
Calculating shipping and freight weight for titanium tube orders.
Preparing a bill of materials for fabrication or purchasing of titanium assemblies.
Comparing wall thicknesses to balance strength and weight in lightweight designs.
Selecting the right titanium grade by comparing weight across Grade 2, Grade 5, and Grade 9.
Verifying load and handling requirements for medical device or motorsport applications.
Quick field estimation of titanium tube weight without manual calculation.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu