Free engineering tools for carbon fiber tube buyers: weight, deflection, unit conversion, and size selection. Built by WHABEST engineers.
Tube Weight Calculator
Enter outer diameter, wall thickness and length to get instant theoretical weight in grams and kilograms, plus per-meter weight.
Deflection & Stiffness Calculator
Check bending deflection and stiffness under load before you finalize tube dimensions for your build.
Tube Size Converter
Convert carbon tube dimensions between millimeters and inches in one click — no math mistakes.
Tube Sizes Chart & Selector
Browse the full OD / ID / wall thickness chart and pick the right stock tube for your project.