Select the shape of the ABS and enter the required variables. The calculator will evaluate and display the ABS weight. 

ABS Weight Calculator

ABS Weight Formulas

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

ABS Flat Sheet Weight Formula = L * W * T * d

ABS Round Bar Weight Formula = pi * D^2/4 * L * d

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

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

ABS Square Angle Weight Formula = (2*W*T – T^2) * L * d

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

ABS 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
  • H is the height (for T‑bar). For C channel, H is the inner height (clear opening between flanges).
  • d is the density
  • D is the diameter
  • T is the thickness
  • R is the outer radius
  • r is the inner radius
  • T1 is the channel flange thickness (thickness along the width)
  • T2 is the channel web thickness (thickness along the height)

The calculator converts all lengths to inches and density to lb/in³ internally. You can enter lengths in inches, millimeters, or centimeters, and density in lb/in³, g/cm³, or kg/m³.

What is the density of ABS?


A typical density of ABS is 0.03793366 lbs/in^3.