Calculate brass weight in kg or lb for round rod, flat bar, sheet, hex bar or tube from its size and alloy, or find the length for a target weight.
Brass Weight Formulas
The following formulas are used to calculate the weight of Brass in different shapes.
Brass Flat Sheet Weight Formula = L * W * H * d
Brass Round Bar Weight Formula = pi * D2/4 * L * d
Brass Square Hollow Tube Weight Formula = [W2-(W-2T)2] * L * d
Brass Round Hollow Tube Weight Formula = pi * (R2-r2) * L * d
Brass Square Angle Weight Formula = (2*W*T – T2) * L * d
Brass T bar Weight Formula = (W*T + (H-T)*T)* L * d
Brass 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
- Hi is the inner height (for the C Channel input)
- 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 calculator accepts dimensions in mm, cm or inches and lengths in mm, m, inches or feet, uses the alloy density in g/cmยณ (8.50 g/cmยณ is about 0.307 lb/inยณ), and gives the weight in both kg and lb. When working by hand, keep the length and density units consistent: lengths in inches with density in lb/in3 give the weight in lb.
What is the density of Brass?
A typical density for brass is about 0.308 lbs/in3 (it varies by alloy, commonly around 0.304 to 0.315 lbs/in3).
