Calculate nylon weight in kg or lb for a rod, sheet or tube from its dimensions and grade, with typical densities for cast nylon, PTFE and other plastics.

Typical densities; a specific grade can differ by a few percent. Choose Custom density to enter your own.

Quantity (optional)
Blank means 1 piece.

Nylon Weight Formulas

The following formulas are used to calculate the weight of Nylon in different shapes.

Nylon Flat Sheet Weight Formula = L * W * H * d

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

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

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

Nylon Square Angle Weight Formula = (2*W*T - T2) * L * d

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

Nylon C Channel Weight Formula = (2*W*T1 + (H-2*T1)*T2) * L * d

Variables used in these equations: 

  • L is the length
  • W is the width (outer width/side length, or leg length depending on the shape)
  • 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 flange thickness
  • T2 is the channel web thickness

The calculator accepts inches, millimeters, or centimeters for lengths, and lb/inยณ, kg/mยณ, or g/cmยณ for density (it converts everything internally). As with any weight calculation, the density and dimensions must be in compatible units.

What is the density of Nylon?

A typical density for Nylon (for example, Nylon 6/6) is about 0.0412 lb/inยณ (โ‰ˆ1.14 g/cmยณ, โ‰ˆ1140 kg/mยณ).