Steel Weight Calculator is a verified engineering & build calculation tool on Calcify. Calculate TMT steel reinforcement bar weight using the D²/162.2 kg/m civil engineering formula. All calculations execute locally in your browser with multi-currency support, visual breakdowns, and white-label client exports.
Unit Weight: 0.888 kg/m | Weight per 12m Bar: 10.65 kg
Unit_Weight (kg/m) = D² / 162.2; Total_Weight (kg) = Unit_Weight × Length_m × Bar_Count
Example Inputs: TMT Bar Diameter D (mm — 8, 10, 12, 16, 20, 25, 32): 12 mm · Standard Length per Bar (Meters — std 12m): 12 m · Total Number of Steel Bars: 50 Bars
Example Output: Total TMT Steel Weight: 532.68 kg (0.533 Metric Tons) (Unit Weight: 0.888 kg/m | Weight per 12m Bar: 10.65 kg)
The Steel Weight Calculator on Calcify applies the verified mathematical formula: Unit_Weight (kg/m) = D² / 162.2; Total_Weight (kg) = Unit_Weight × Length_m × Bar_Count. Every input is validated in real time with multi-currency formatting to ensure zero rounding or division errors.
Derived from standard carbon steel density of 7,850 kg/m³ (π/4 × D² × 7850 / 10⁶ = D² / 162.2).
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