Weight of round bar per metre or per cut length. Enter diameter, length and material to get weight in kg and lbs, plus the volume.
Let our engineers find the right factory for your specs. 100% Quality Guaranteed.
Request a Proposal →Knowing bar weight is essential for material handling, shipping cost estimation, and verifying received stock quantities. This calculator uses the material density and bar dimensions to compute weight.
Approximately 92.5 kg. Calculation: volume = pi x (25mm)2 x 6000mm = 11,781,000 mm3 = 11,781 cm3. Weight = 11,781 x 7.85 / 1000 = 92.5 kg. Always check your crane/forklift capacity before lifting -- a bundle of 10 bars weighs nearly a ton.
Theoretical weight assumes a perfect cylinder at nominal diameter. Hot-rolled bars have mill tolerance (+/-0.5% to 2%), an oval cross-section from rolling, and surface scale. Actual weight is usually within 1-3% of theoretical. Cold-drawn and ground bars are closer to theoretical.
Hexagonal: 0.866 x (flat-to-flat)2 x length x density. Square: (side)2 x length x density. These shapes have more cross-sectional area than round bar of the same nominal size (more weight per metre).
Enter the bar diameter, length, and material density (or select from presets). The calculator gives the weight in kg and lbs plus the volume. Use the default steel density of 7.85 for carbon and alloy steels, or adjust for your specific material.
Continue with closely related tools from the machining calculator library.
Use the calculator freely. If the result points to a tooling or process problem, we can source the exact carbide tooling you need from vetted factories in China. Compare factory-direct pricing.
Before you commit to a spec, it helps to know what the market pays for it. These are real, publicly listed factory prices — not a quotation, and not a guess.
We source the tool families below direct from vetted Chinese factories, matched to the material and tolerance you just worked out. Every batch ships with its material certificate and dimensional record.
Explore more precision machining tools and calculators
CALCULATING ROD WEIGHT? Rod is the largest single cost inside a carbide tool, which is why weight and grade move the quote together. See how rod cost becomes the tool price you pay.
We source carbide cutting tools from China for job shops. We do not own a factory, which is why we can quote your drawing against two or three plants that actually run your material.
Cutting formulas with the units worked through · Speed and feed starting points for all six ISO material groups · How to read a carbide grade past its ISO code. 12 pages.
Or send us a quote you already have — we will benchmark it free →