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

ABS Weight Formulas

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

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

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

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

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

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

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

ABS C Channel Weight Formula = (2*W*T1+H*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

The units used in all calculations on the calculator are inches for lengths and lbs/in^3 for density. These can be switched for any equivalent unit as long as the density units are also changed to match. For example, if you change the lengths to feet, the density should be in lbs/ft^3 or mass/ft^3.

What is the density of ABS?

The average density of ABS is 0.03793366 lbs/in^3.