Steel reinforcement (rebar) is the backbone of every reinforced concrete structure in the UAE. Whether you are calculating material for a villa foundation, high-rise column, or bridge beam, knowing the exact steel weight is critical for budgeting and ordering.
Our Rebar Steel Weight Calculator uses the internationally recognised formula Weight = (D2 / 162) x Length, compliant with BS 4449 and UAE ESMA standards. Get instant calculations for T8 through T40 bars — the complete range used in UAE construction.
How to Use This Calculator
- Select the bar diameter from T8 to T40 from the dropdown
- Enter the length per bar in metres (standard UAE bar is 12m)
- Enter the number of bars required for your element
- Click Calculate to get weight per metre, total kg, total tonnes, and total length
🇦🇪 UAE Tip: All rebar used on UAE construction sites must be ESMA certified. Always request mill certificates with each delivery. Grade 460B and 500B are the standard yield strengths used in UAE structural concrete. Add 5 to 8 percent to your calculated quantity for laps, hooks, and wastage on site.
The Formula Explained
Weight per metre (kg/m) = D2 / 162, where D is the bar diameter in millimetres. Total Weight = Weight per metre x Length per Bar x Number of Bars.
Frequently Asked Questions
What rebar standard does UAE use?
UAE follows BS 4449 for deformed steel reinforcing bars. Grade 460B (460 MPa yield strength) is most commonly specified. ESMA certification is mandatory for all rebar used on UAE sites.
How much does a 12m T16 bar weigh?
T16 rebar: Weight per metre = 16 squared / 162 = 1.58 kg/m. A standard 12m bar weighs approximately 18.97 kg.
Should I order extra rebar for wastage?
Yes. Add 7 to 10 percent to your calculated quantity. UAE sites require lap lengths of 40 to 50 bar diameters, plus hooks and bends which add to total length required.
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