Calculate polycarbonate sheet weight in kg or lb, plus weight per square foot, from width, length and thickness, or weigh PC rod and tube by grade.

Typical density for the named grade. Solid sheet only; multiwall sheet needs the supplierโ€™s weight per area.

Quantity and order allowance
Blank uses 1 piece.

Default 5%; blank means none. Material allowance only, excluding packaging.

Polycarbonate Weight Formulas

For uniform stock, material mass equals cross-sectional area ร— length ร— density. The calculator handles rectangular stock, round rods and round tubes. The other section formulas below are manual extensions; use consistent length units and the matching density unit.

Polycarbonate Flat Sheet/Square Bar Weight Formula = L * W * T * d

Polycarbonate Round Bar Weight Formula = pi * D2/4 * L * d

Polycarbonate Square Hollow Tube Weight Formula = [W2-(W-2T)2] * L * d

Polycarbonate Round Hollow Tube Weight Formula = pi * (R2-r2) * L * d

Polycarbonate Square Angle Weight Formula = (2*W*T – T2) * L * d

Polycarbonate T bar Weight Formula = (W*T + (H-T)*T)* L * d

Polycarbonate C Channel Weight Formula = (2*W*T1+Hi*T2)* L * d

Variables used in these equations: 

  • L is the length
  • W is the width
  • H is the height
  • d is the density
  • D is the outer diameter
  • T is the thickness
  • R is the outer radius
  • r is the inner radius
  • T1 is the channel thickness along the width
  • T2 is the channel thickness along the height
  • Hi is the channel inner height

Each dimension has an independent mm, cm, m, inch or foot control; changing its unit converts the entered value. Weight mode reports net material mass in kg, g, lb or oz. Cut-length mode uses a total net mass target and returns equal length per piece. Quantity defaults to one whole piece. Optional order allowance defaults to 5%, may be edited or cleared, and is applied after net mass; it does not change a cut length solved from a net target or include packaging.

What is the density of Polycarbonate?

A typical named unfilled reference, Makrolon 2405, has density 1.20 g/cmยณ (1,200 kg/mยณ, about 0.0433528 lb/inยณ). The calculatorโ€™s Makrolon 2407 UV and 6555 FR examples also use 1.20 g/cmยณ; Makrolon 8035, a 30% glass-filled example, uses 1.42 g/cmยณ. These are grade-specific typical values, not universal family densities. Use the actual supplier density when known. Covestroโ€™s grade comparison lists these reference densities. Multiwall sheet needs the supplierโ€™s mass per area rather than the solid outer-volume model.