Steel Weight Calculator
Calculate the exact weight of TMT steel bars based on their diameter and length.
Steel Weight Calculator
Steel Profile (TMT/Rebar)
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Calculation Results
How to Use This Formula
The Steel Weight Calculator uses the standard engineering formula (D² × L) / 162.2 to determine the weight of steel rebars, where D is diameter in mm and L is length in meters.
- Select the diameter of the steel bar (e.g., 8mm, 10mm, 12mm).
- Enter the total length of the steel required in meters or feet.
- The calculator will instantly output the total weight in kilograms and tonnes.
TMT Bar Weight Calculation
TMT steel bars provide the tensile strength needed for reinforced concrete. Calculate the precise weight of steel rebar in kilograms or tons by entering the bar diameter (e.g., 8mm, 12mm, 16mm) and length.
Frequently Asked Questions
What is the formula to calculate TMT steel rebar weight?
The standard civil engineering formula for TMT bar unit weight is Weight (kg/m) = D² / 162.2, where D is bar diameter in millimeters (or D² / 533 for weight in kg/ft). For example, 8mm = 0.395 kg/m, 10mm = 0.617 kg/m, 12mm = 0.888 kg/m, and 16mm = 1.580 kg/m.
What is the standard commercial length of a TMT bar in India?
In India, standard commercial TMT steel rebar manufactured by primary producers (Tata Tiscon, JSW, Jindal, SAIL) is 12 meters (39.37 feet) per rod.
What is the difference between Fe 500, Fe 500D, and Fe 550D rebar?
Fe denotes Iron and 500/550 denotes yield strength in N/mm². The letter D stands for High Ductility. Fe 500D has higher elongation (minimum 16%), enabling superior earthquake vibration absorption without brittle failure, making it ideal for residential construction.
How much steel is required for residential house construction?
Residential RCC construction generally consumes 3.5 kg to 4.5 kg of steel per square foot of built-up area (approx 3.5 to 4.5 metric tonnes for a 1,000 sq ft house).