Answer / saleem

Rougly it is calculated by a formula

(D*D)/162

Answer / amarjeet

generly it is calculated by d*d/162. for 1 m length. like
8dia bar: d*d/162= 8*8/162=
64/162 =0.395kg per meter length
if u t having 12 m rod of 8 mm dia than total weight of 12
m bar is= 12*0.395
= 4.74kg

Answer / sard

Find the volume of one metre length of rod . Multiply it
with desity ..

Often steel rods are weighed to make sure that no hollow
blow holes are there in manufactured steel

For each dia rods weight per unit metre is known and we can
weigh it properly

Answer / mohsin

d*d/162.162 where d is dia of bar.... remember it is weight
per meter..... like 6*6/162.162 = 0.222 kgs/meter....

8*d*d/3 where d is dia (in inches) of bar in FPS system...

d*d/24 also in FPS but here d is bar number... like #4 bar
mean 4/8 inch (0.5 inch)

Answer / bkaskarrao

Dia of road*Dia of road/162*length of road meter
ex:-8*8/162*1m
=0.395kg
ex;-8*8/162*12m
=4.74kg

Answer / shubham jain

Volume×density=weight
(Volume=area×length mm^3)
for 1m of length
((22×r×r÷7)×1000)mm^3=volume
(Volume = 3142.857 r×r=785.714 d×d mm^3)
(Density=7856.34×10^-9kg/mm^3)
Weight= 785.714×d×d×7856.34×10^-9 kg/m
Weight=d×d×6.17283726×10^-3 kg/m
Or
weight=d×d÷
For example :- 8mm steel bar
weight=8×8÷162 kg/m
WEIGHT= 0.395 kg/m

Answer / amit

the we use d*d/162 but the original formula where it is derived from is

take 1mm rod as
the sample
-----
| |
| |
| |
| |
----- aassume it as cyinder
and try calculating the area using
22/7*r*r*h

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