We use this  formula to calculate the weight of steel bars in KG/ Meter

(D)2/162.5 * L 

* D = diameter of the bar

* L = length of  the bar So the weight of the 8 mm bar will be
(8×8)/162.5 = 0.39 kg/ meter (For 1 meter length)

Similarly, the weight of bars will be as follows:

SIZE (Diameter)

THEORETICAL WEIGHT KG/M

6mm

0.222

8mm

0.395

10mm

0.62

12mm

0.89

14mm

1.21

16mm

1.58

18mm

2

20mm

2.47

22mm

2.98

25mm

3.85

28mm

4.83

32mm

6.31

40mm

9.87

For more information watch this video

Click Here To See What Is Fe 415 In A Steel Bar

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