Material Weight Calculator

Calculate the weight of sheet, plate, discs, pipe, and tube from your dimensions, or from standard pipe, conduit, and copper tube sizes.

Calculate material weight from dimensions

Choose the shape of your part. Weight updates as you enter dimensions.

Set all
Sheet
Tube

Results

Total weight

19.63 lb

For the entered quantity and dimensions

Material density
0.284 lb/in³
Total surface area
16.06 ft²
Total volume
69.12 in³
Rectangular plate — isometric dimension guideWL

Isometric view · not to scale

L
48 in
W
24 in
t
0.06 in

Material densities for sheet, plate, panels, pipe, and tube

Compare the materials we stock, or browse 186 reference densities for metals, plastics, composites, ceramics, rubber, glass, and wood.

8 materials
Material Family Common names kg/m³ lb/in³
Aluminum 5052-H32Metal—2,6800.097
Aluminum 6061-T6Metal—2,7200.098
Aluminum 7075-T6Metal—2,8100.102
Steel 1008 cold-rolledMetal—7,8500.284
Steel A36 HRPOMetal—7,8610.284
Galvanized steel G90Metal—7,8500.284
Stainless steel 304-2BMetal—8,0300.290
Stainless steel 316Metal—7,9900.289

How it works

Weight is cross-section area times length times density. Sheet and plate use the rectangle or disc you enter, and tube is the outside shape minus the hollow. The usual mistake is typing a nominal size, like 2 in pipe or 16 gauge, where the calculator needs the real outside diameter or thickness.

How to use the calculator

  1. 1Pick the shape: rectangular or round sheet, or rectangular or round tube.
  2. 2Enter real dimensions. Pipe and conduit sizes are names, not diameters, so load a size preset or look up the outside diameter and wall. For a gauge, use the thickness for that metal from the gauge chart.
  3. 3Pick the material from the Fabworks list or all materials. Use Custom if your supplier gives a density.
  4. 4Set the quantity and the units you want the weight in.

Sheet, panel, and tube weight formulas

Sheet or plate
weight = length × width × thickness × density
For a disc, replace length × width with π/4 × diameter².
Round tube
weight = π/4 × (OD² − ID²) × length × density
ID = OD − 2 × wall.
Rectangular tube section
area = W × H − (W − 2t) × (H − 2t) − (4 − π) × (R² − r²)
R is the outside corner radius and r = R − t is the inside radius. The corner term is zero for square corners.

Aluminum sheet

Inputs
One 24 × 48 × 0.125 in sheet of 5052-H32 aluminum (2,680 kg/m³).
Result
Volume = 144 in³ and weight = 13.94 lb.

24 × 48 × 0.125 = 144 in³. Aluminum 5052-H32 is 0.0968 lb/in³, and 144 × 0.0968 = 13.94 lb.

What to know before using the result

Why does a supplier quote a different weight?
Suppliers quote theoretical weight from nominal size, as this does. A delivered plate can run a few percent over or under on thickness, and ASTM A53 pipe can have a wall up to 12.5% under nominal.
Does rectangular tube weight include corner radii?
Yes. Enter the outside corner radius. The inside radius is the outside radius minus the wall, so the corners stay a constant wall thickness.
Can I weigh a part with holes, slots, or bends?
This page weighs the plain blank or tube. For a cut or bent part, upload its STEP file to the part weight calculator and it subtracts every cutout.
Can I use it for wood, plastic, or glass?
Yes. Pick one from All materials, or enter a custom density. The panel weight page starts you there.

Assumptions and limits

  • Sheet and plate are a flat rectangle or disc of even thickness. Holes and cutouts are not subtracted.
  • Rectangular tube has a constant wall: the inside corner radius is the outside radius minus the wall.
  • Pipe, conduit, and copper presets use nominal wall. Real pipe can run thinner.
  • Fittings, couplings, weld seams, and coatings are not included.

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