how to calculate weight steel bars in kg

 

The basic formula to calculate weight of steel bars is as follows

Weight = Volume of bar x Density of Mild steel

Volume of bar = (π/4) x d²  X Length of Bar

Density of Mild Steel is 490 Pounds per Cft

So calculating weight of bars in Kgs/ft

 

2/8" dia bar weight in Kgs/ft = 0.075 Kgs/Ft

3/8" dia bar weight in Kgs/ft = 0.17 Kgs/Ft

4/8" dia bar weight in Kgs/ft = 0.302Kgs/Ft

5/8" dia bar weight in Kgs/ft = 0.473 Kgs/Ft

6/8" dia bar weight in Kgs/ft = 0.681 Kgs/Ft

7/8" dia bar weight in Kgs/ft = 0.927 Kgs/Ft

8/8 " dia bar weight in Kgs/ft = 1.21  Kgs/Ft