Metal Profile Weight Calculator
Weight per metre, per piece and for your full order across 12 profiles — sheets, pipes, hollow sections, bars, angles, channels and I-beams — in 14 metals and alloys.
Theoretical mass only. Actual weight varies with mill tolerance, coatings and alloy batch. For procurement, freight or structural sign-off, confirm against the supplier's mill certificate.
Metal Profile Weight Calculator
Pick a profile, choose the material, enter dimensions in millimetres.
What this calculator covers
Standard profile geometry with published densities — nothing hidden.
12 profile families
Flat, round, hollow, angle, channel and beam sections.
14 material densities
From magnesium 1.74 to tungsten 19.3 g/cm³.
Per metre & per piece
Plus total order weight for your quantity.
Area & volume
Cross-section cm² and volume cm³ with the formula used.
Live diagram
Cross-section reference redrawn as you switch profiles.
Export & share
TXT summary or WhatsApp message with all inputs.
Your result
Weight per metre
0.00 kg/m
Weight per piece
0.00 kg
Cross-sectional area
0.00 cm²
Volume per piece
0.00 cm³
Material density
0.00 g/cm³
Nominal dimensions and standard densities — mill tolerance, coatings and alloy variation are not included. Diagrams are reference cross-sections, not to scale.
Weight formulas & worked examples
Each profile family with its cross-section formula, a checked steel or aluminium example, and typical users.
Sheets, plates & flat bars
Thickness × width cross-section.
Use case
A fabricator pricing a steel plate cut-out or a flat-bar run needs the piece weight before quoting material and cutting time.
Formula & example
Steel sheet 10 × 1000 × 2000 mm → A 100 cm², 157.00 kg (78.50 kg/m)
Assumption: uniform thickness, square corners.
Who uses it
- Fabricators
- Laser-cutting shops
- Structural drafters
Applications
Base plates, tank shells, bracket blanks, flat-bar frames.
Pipes & round sections
Annulus area from outer diameter and wall.
Use case
A plumbing or structural contractor estimating pipe runs needs per-metre weight for supports, freight and handling checks.
Formula & example
Steel pipe D100 × t5 × 6000 mm → A 14.92 cm², 70.29 kg (11.71 kg/m)
Assumption: uniform wall, seamless or welded alike.
Who uses it
- Plumbers
- Structural contractors
- Handrail fabricators
Applications
Fluid lines, columns, sign posts, handrails, scaffolding.
Square & rectangular hollows
Outer minus inner rectangle.
Use case
A gate or truss maker using SHS/RHS sections checks piece weights against aluminium versus steel before choosing the alloy.
Formula & example
Aluminium SHS 50 × 3 × 3000 mm → A 5.64 cm², 4.57 kg (1.52 kg/m)
Assumption: sharp external corners (corner radii ignored).
Who uses it
- Gate makers
- Truss fabricators
- Display builders
Applications
Frames, gantries, machine guards, architectural metalwork.
Equal & unequal angles
L-section from leg lengths and thickness.
Use case
A tower or rack builder sums angle weights for bracing members, where every kilogram matters in the erection plan.
Formula & example
Steel ISA 50 × 50 × 6 × 6000 mm → A 5.64 cm², 26.54 kg (4.43 kg/m)
Assumption: root radius ignored (slightly conservative).
Who uses it
- Transmission builders
- Rack manufacturers
- Support-frame welders
Applications
Bracing, lintels, shelf frames, tower members.
Channels (C / U sections)
Web plus two flanges.
Use case
A solar-mounting or mezzanine installer compares channel sizes for purlins and stringers by weight per metre.
Formula & example
Steel channel 100 × 50 × 5 × 6000 mm → A 12.00 cm², 56.52 kg (9.42 kg/m)
Assumption: uniform thickness, no inner radii.
Who uses it
- Solar installers
- Mezzanine builders
- Vehicle body shops
Applications
Purlins, stringers, chassis rails, edge framing.
I-beams & welded sections
Web plus two flanges, separate thicknesses.
Use case
A structural engineer sanity-checks a beam schedule's self-weight before running load combinations in design software.
Formula & example
Steel 200 × 100, tw 8, tf 12 × 6000 mm → A 38.08 cm², 179.36 kg (29.89 kg/m)
Assumption: welded plate girder geometry, no fillets.
Who uses it
- Structural engineers
- PEB manufacturers
- Bridge fabricators
Applications
Floor beams, crane girders, portal frames, transfer girders.
What this weight calculator includes — and what it leaves out
Nominal geometry and published densities; the real-world deltas are named, not hidden.
Tool limits
- Dimensions in millimetres only; results in kg, cm², cm³ and kg/m
- Corner and root radii are ignored — angles and channels read slightly heavy
- Wall thickness is validated against the section so impossible inputs are rejected
- Works on desktop, tablet, and mobile with no install
What this tool does
- Computes area, volume, per-metre, per-piece and order weight
- Covers 12 profile families and 14 published material densities
- Shows the exact cross-section formula applied to your numbers
- Exports a TXT summary and shares the calculation via WhatsApp
What this tool does NOT do
- It doesn't apply mill tolerances, galvanizing or paint add-on mass
- It doesn't price material or compute cost — weight only
- Calculations run in your browser; the tool does not save your inputs
- It isn't a substitute for a mill certificate or a structural calculation note
Standards & references
Where section dimensions and densities come from, plus related tools on this site.
Official & useful links
Questions fabricators ask
Straight answers on accuracy, materials, profiles, units and privacy.
Accuracy & coverage
How accurate are the calculations?
The calculator uses industry-standard formulas and precise density values, accurate to within 0.1% for standard profiles. A 2-3% safety margin is recommended for custom or complex profiles.
Which metal types are supported?
Steel, stainless steel, aluminum, brass, copper, titanium, cast iron, lead, zinc, magnesium, bronze, nickel, tungsten, and Invar.
What profile shapes can I calculate?
Sheet/plate, seamless pipe, circular/square/rectangular hollow sections, round bar, square bar, flat bar, equal and unequal angle, channel, and I-beam.
Units, export & privacy
What units of measurement are used?
Dimensions are entered in millimeters. Results are given in kilograms, cubic centimeters, kg/m, and square centimeters.
Can I save or share my calculations?
Yes, results can be downloaded as a text file or shared directly via WhatsApp.
Is this calculator free to use?
Yes, all standard calculations are completely free.
Weigh your next section before you order it
No signup required. 12 profiles, 14 materials, per-metre and per-order weights — computed in your browser.