TMT Bar Unit Weight Formula Explained | D²/162 Trick | BBS & Site Engineers Must Know #shorts

Struggling to calculate TMT bar weight quickly on site? 🤔
In this short video, learn the simple D²/162 formula to calculate unit weight of TMT bars in seconds!

👉 Formula:
Weight (kg/m) = D² / 162

Where D = Diameter of bar (in mm)

✅ Useful for:

BBS Engineers
Quantity Surveyors
Site Engineers
Civil Engineering Students

💡 Example:
12mm bar → (12×12)/162 = 0.89 kg/m

🎯 Master this trick to avoid mistakes and save material cost on site!
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