Construction Calculator - Materials and Specs

Aluminum Weight Calculator

Estimate aluminum weight from dimensions and density.

Reviewed: August 31, 2026

Calculate Aluminum Weight

For the Aluminum Weight Calculator, enter length, width, thickness, material density, and price per pound. It multiplies rectangular volume by the entered material density and reports pounds, short tons, and optional cost per pound.

Construction measuring tools arranged beside a residential building project

Formula used

Weight = rectangular volume × entered density

Aluminum Weight Calculator measurement plan showing Length feet, Width feet, Thickness inches

Worked aluminum weight example

Aluminum Weight Calculator example: 12.7 ft × 1.8 ft × (4 in ÷ 12) = 7.62 ft³. At the entered 169 lb/ft³, estimated weight is 1,288 lb (0.64 short tons).

Use the weight for planning

Use pounds for rough handling and purchasing checks; use the mill's published pounds per foot for standard extrusions when available.

Alloy and shape determine aluminum weight

The rectangular-volume model is appropriate only when length, width, and thickness describe a solid block or plate. Extrusions, channels, tubes, tread plate, and perforated sheet need net cross-sectional area or manufacturer mass-per-length data. Enter density for the actual alloy if it differs from the example value.

Why scale or supplier weight may differ

Alloy, temper, extrusion hollows, corner radii, tolerances, coatings, and cutouts change weight from a solid rectangular model.

Questions specific to this calculation

Which density belongs in an aluminum weight estimate?

Enter solid rectangular dimensions and an alloy-appropriate density. The default is a reference value and should not be treated as exact for every alloy or product form.