Plastic Sheet & Rod Weight Calculator

Work out the weight of any plastic or rubber sheet, rod or tube in seconds. Choose the material, enter the size in millimetres and the calculator gives the weight per piece and for your full quantity. Use it to plan transport, check a supplier’s quote or size a crane lift.

How the weight is calculated

Weight (kg) = volume (mm³) × density (g/cm³) ÷ 1,000,000.

• Sheet: length × width × thickness
• Round rod: π ÷ 4 × diameter² × length
• Tube, bush or ring: π ÷ 4 × (outside diameter² − inside diameter²) × length

Example: a UHMWPE sheet 2000 × 1000 × 20 mm weighs 2000 × 1000 × 20 × 0.93 ÷ 1,000,000 = 37.2 kg.

Need the material cut to size?

Diode Trading EST stocks and machines UHMWPE sheets and rods, PTFE (Teflon), nylon, POM, HDPE, PP, PVC and other engineering plastics, and rubber and polyurethane sheets in Dammam, with delivery across Saudi Arabia and the GCC. Press Add to quote above to send us your sizes, or see our technical datasheets.

Frequently asked questions

Why is my actual weight different from the calculator?

Densities vary slightly by grade, colour and filler, and sheets are usually supplied slightly oversize. Expect a difference of about ±3%.

Which plastic is lightest?

Polypropylene (0.91 g/cm³) and UHMWPE (0.93 g/cm³) are the lightest common engineering plastics. Both float in water. PTFE is more than twice as heavy at about 2.16 g/cm³.

Can I calculate rubber sheet weight?

Yes. Choose neoprene, NBR, EPDM, natural rubber, silicone or Viton from the material list.