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Metal weight

Aluminum flat bar weight

Density 0.0975 lb/in3 (2.7 g/cm3), typical of 6061.

SheetWeight table
BasisPublished density
Checked2026-09-24
Quick answer

0.5" x 2" aluminum flat bar weighs 1.170 lb per ft (1.74 kg per m). Weight = cross-section area x length x 0.0975 lb per cubic inch.

How much does aluminum flat bar weigh per foot?

SizeArea (sq in)lb per ftkg per m12 ft length, lb
0.125" x 1"0.12500.1460.221.8
0.25" x 1"0.25000.2920.443.5
0.25" x 1.5"0.37500.4390.655.3
0.25" x 2"0.50000.5850.877.0
0.375" x 2"0.75000.8781.3110.5
0.5" x 2"1.00001.1701.7414.0
0.25" x 3"0.75000.8781.3110.5
0.5" x 3"1.50001.7552.6121.1
0.5" x 4"2.00002.3403.4828.1
0.5" x 6"3.00003.5105.2242.1

Formula: area = width x thickness; weight = area x length x 0.0975 lb/in3. For any other size use the metal weight calculator.

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Frequently asked questions

How do you calculate the weight of aluminum flat bar?

Multiply the cross-section area in square inches by the length in inches and by the density, 0.0975 lb per cubic inch for aluminum (6061). For this shape the area is: area = width x thickness. A foot of stock is 12 inches, so weight per foot is area x 12 x 0.0975.

How does aluminum compare with steel by weight?

Aluminum is 66% lighter than carbon steel for the same size: 0.0975 lb per cubic inch against 0.2836. The same bar or plate in aluminum weighs 0.34 times the steel figure.

Other aluminum shapes

Flat bar in other metals

Keep going

Weights from typical published densities; actual alloys and mill tolerances vary by a few percent. Not an engineering load calculation.