Use this TMT Bar Weight & Price Calculator to accurately determine the total weight and price of Thermo Mechanically Treated (TMT) Bars as per IS 1786:2008 standards. Ideal for engineers, contractors, and builders — this tool ensures precise material estimation and cost calculation for any project size.
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The IS 1786:2008 standard governs TMT Bars (Thermo Mechanically Treated Bars) used for reinforced concrete construction. It defines the chemical composition, mechanical properties, ductility classes, and testing requirements ensuring safety, weldability, and earthquake resistance.
TMT bars are made by hot rolling steel billets followed by controlled Thermo-Mechanical Treatment that enhances strength and flexibility — providing a tough outer layer and ductile core for superior load-bearing performance.
For detailed tables and technical specifications, read our complete guide: IS 1786:2008 – High strength deformed steel bars .
Reference table for TMT Bar weight per meter based on diameter (calculated using steel density 7.85 g/cm³).
*Slight variations may occur due to BIS tolerance limits.
The TMT bar weight can be calculated using this standard formula:
Weight (kg) = D² × L × 0.00617
Where: D = Diameter (mm), L = Length (m).
Example: For a 12 mm bar, 10 m long → Weight = 12² × 10 × 0.00617 = 8.89 kg