The calculation, without hidden assumptions
Calculate ideal equal- or unequal-leg angle mass from explicit L-section geometry. MAXScanner exposes the overlap correction, supports metric and imperial inputs, and keeps supplier/table mass comparison separate from the theoretical result.
How to use this calculator
Enter both outside leg lengths; use equal values for an equal angle.
Enter thickness and piece length, then choose metric or imperial units.
Use 7,850 kg/m³ for carbon-steel estimating or enter a documented density for another material.
Optionally enter rate/kg, target mass or a supplier kg/m value.
Check the substituted working before using the estimate for procurement.
Where people use it
- •Estimate equal and unequal angle takeoff mass.
- •Convert angle mass between kg/m and lb/ft.
- •Estimate batch weight and material cost for fabrication.
- •Reverse a target payload or order mass into whole pieces.
- •Compare ideal geometry with a supplier or standard-table kg/m value.
50 × 50 × 5 mm angle, 6 m × 10 pieces
Ideal sharp-corner area is (50 + 50 − 5) × 5 = 475 mm². At 7,850 kg/m³ that is 3.72875 kg/m, about 22.37 kg per 6 m piece and 223.73 kg for 10 pieces.
What the result does not assume
- •Rolled angles have root and toe radii; ideal rectangular-leg geometry does not reproduce every standard table exactly.
- •Use certified mill/standard section data where nominal mass is contractual or safety-critical.
- •Density varies by alloy and grade.
- •This is a mass/procurement calculator, not a structural capacity or code-compliance calculator.
- •Galvanizing, coatings, holes, cuts and fabrication can change delivered mass.
Frequently asked questions
What is the formula for angle weight?+
For an ideal constant-thickness L-section, area is (A + B − t) × t. Multiply area by density for mass per length, then by cut length and quantity.
Does it calculate unequal angles?+
Yes. Enter different leg A and leg B dimensions. Equal angles simply use the same value for both legs.
Why is my supplier kg/m different?+
Rolled products include root and toe radii plus manufacturing tolerances. The supplier or governing standard table should control when certified nominal mass matters.
Can I use inches and feet?+
Yes. Leg dimensions can be entered in inches and piece length in feet; results still report both kg/m and lb/ft.
Can I calculate pieces from a target weight?+
Yes. Enter a target mass and the calculator reports how many whole pieces of the entered length fit within it.
Is this suitable for structural design?+
No. Mass geometry does not establish grade, section properties, buckling resistance, connection design or code compliance.
Semantic next steps
Continue the calculation
These links move to a different input, formula or project stage rather than a keyword variation of this page.
Flat Bar Weight Calculator — kg/m, lb/ft & Batch Weight
Calculate steel, stainless, aluminum or custom flat bar weight from width, thickness and length. Get kg/m, lb/ft, batch/order mass, cost and target-piece reverse solving.
OpenHollow Section Weight Calculator — SHS & RHS kg/m
Calculate square or rectangular hollow section weight from outside dimensions, wall, length and density. Get kg/m, lb/ft, batch mass, cost and supplier variance.
OpenPipe Weight Calculator — kg/m, lb/ft & Total Weight
Calculate theoretical round pipe or tube weight from actual OD, wall thickness, length and material density. Get kg/m, lb/ft, batch weight, surface area and reverse wall thickness.
OpenMetal Plate Weight Calculator — Steel, Aluminum & More
Calculate plate or sheet weight from length, width, thickness and material density. Get kg/lb, batch weight, kg/m², cost, reverse target thickness and measured-density diagnostics.
OpenRebar Weight Calculator — kg/m, lb/ft, Bars & Tonnes
Calculate theoretical rebar/TMT bar weight from diameter, cut length and quantity. Get kg/m, lb/ft, tonnes, allowance, cost and reverse bars by target mass.
OpenGross Shipment Weight Calculator — Net, Cartons & Pallets
Calculate cargo gross weight from product quantity, net weight, unit packaging, carton tare, pallets and other packing, with optional container tare and a complete weight audit.
OpenPaper Roll Weight Calculator — Reel Weight, Length & GSM Check
Calculate paper roll weight from OD, core OD, width, caliper and GSM. Get roll length, area, net/gross weight, batch weight and measured-roll calibration.
OpenLabel Roll Calculator — Labels Per Roll, Remaining & Diameter
Calculate labels per roll from OD, core, caliper and pitch; estimate labels remaining, multi-lane yield, waste, target diameter and effective caliper from a verified count.
OpenFree publisher widget
Put this calculator on your website
Give readers the live calculator without rebuilding the math. Copy the responsive embed in one click, or customize width, height, border and corner radius before publishing. The branded MAXScanner attribution stays visible.
Calculator embed HTML
Paste this code into your page. Focus the code box to select it manually.
Keep the result connected to the real job
MAXScanner keeps the formula and assumptions beside the result so you can verify the number before using it in a drawing, estimate, specification, worksheet or document. Where a supplier, manufacturer, drawing or applicable standard owns a requirement, that source remains authoritative.