Calculate nylon weight in pounds or kilograms from density, material shape, and dimensions for sheets, bars, tubes, angles, T bars, and channels.

Choose a shape and grade, enter every dimension in millimeters, then press Calculate. Required inputs change with the shape you pick.

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 * D^2/4 * L * d

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

Nylon Round Hollow Tube Weight Formula = pi * (R^2-r^2) * L * d

Nylon Square Angle Weight Formula = (2*W*T - T^2) * 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/in³, kg/m³, or g/cm³ 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/in³ (≈1.14 g/cm³, ≈1140 kg/m³).