What formula is used?

Cross-sectional area = Side² − (Side − 2 × Wall)². Weight = Area × Length × Density. All dimensions are converted to meters before calculation. The inner side equals the outer side minus twice the wall thickness.

Which titanium grades are supported?

Grade 1/2 (commercially pure, 4510 kg/m³), Ti-6Al-4V Grade 5 (the most widely used aerospace alloy, 4430 kg/m³), and Ti-3Al-2.5V Grade 9 (tubing alloy common in aerospace and cycling, 4480 kg/m³). Select the grade that matches your material specification.

How does titanium compare in weight to aluminum or steel?

Titanium (around 4430–4510 kg/m³) is roughly 60% heavier than aluminum (2700 kg/m³) but about 43% lighter than carbon steel (7850 kg/m³). Its exceptional strength-to-weight ratio makes it valuable in aerospace, medical, and motorsport applications.

Which units are supported?

Outer side size 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 must the side size be greater than 2 × wall thickness?

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

Can I use this for titanium square bar (solid) weight?

No — this calculator is for hollow square tubes only. For a solid square bar, set wall thickness equal to half the side size, but a dedicated solid bar calculator will be more accurate. The inner side for a solid bar is zero.

Titanium Square Tube Weight Calculator

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

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

Tube Dimensions

Titanium Grade

Outer Side Size

Wall Thickness

Length

Formula Reference

W = (S² − (S − 2t)²) × L × ρ

Where S = outer side (m), t = wall thickness (m), L = length (m), ρ = titanium density (kg/m³), W = weight (kg).

Select a grade, enter tube dimensions, and click Calculate.

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Summary

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

How it works

Select the titanium grade (Grade 1/2, Ti-6Al-4V, or Ti-3Al-2.5V) to set the correct density.
Enter the outer side size 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 side is derived as Inner = Side − 2 × Wall.
Weight is displayed in kilograms and pounds with a full breakdown of dimensions and volume.

Use cases

Estimating material weight for aerospace titanium square tube structural components.
Calculating shipping weight for titanium tubing orders in industrial procurement.
Preparing a bill of materials for high-performance bicycle and motorsport fabrication.
Comparing wall thicknesses and alloy grades to balance strength and weight.
Verifying load-bearing requirements before installation in medical device frames.
Quick field estimation of titanium square tube weight without manual calculation.
Cross-checking supplier weight specifications for quality assurance.

Frequently Asked Questions

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