1.25" OD x 0.12" wall aluminum round tube weighs 0.498 lb per ft (0.74 kg per m). Weight = cross-section area x length x 0.0975 lb per cubic inch.
How much does aluminum round tube weigh per foot?
| Size | Area (sq in) | lb per ft | kg per m | 12 ft length, lb |
|---|---|---|---|---|
| 0.5" OD x 0.065" wall | 0.0888 | 0.104 | 0.15 | 1.2 |
| 0.75" OD x 0.065" wall | 0.1399 | 0.164 | 0.24 | 2.0 |
| 1" OD x 0.065" wall | 0.1909 | 0.223 | 0.33 | 2.7 |
| 1" OD x 0.12" wall | 0.3318 | 0.388 | 0.58 | 4.7 |
| 1.25" OD x 0.12" wall | 0.4260 | 0.498 | 0.74 | 6.0 |
| 1.5" OD x 0.12" wall | 0.5202 | 0.609 | 0.91 | 7.3 |
| 2" OD x 0.12" wall | 0.7087 | 0.829 | 1.23 | 10.0 |
| 2" OD x 0.25" wall | 1.3744 | 1.608 | 2.39 | 19.3 |
| 3" OD x 0.25" wall | 2.1598 | 2.527 | 3.76 | 30.3 |
Formula: area = pi / 4 x (OD squared minus ID squared); weight = area x length x 0.0975 lb/in3. Corner radii are ignored, so real stock runs one to three percent lighter than the table. For any other size use the metal weight calculator.
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Frequently asked questions
How do you calculate the weight of aluminum round tube?
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 = pi / 4 x (OD squared minus ID squared). 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
Round tube 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.