Enter your Rebar Size, Length, Length Unit, and Quantity into the Rebar Weight and Size Calculator to get the Total Weight of your order, plus Weight per Foot, Total Length, Nominal Diameter, and Total Weight in Tons — everything you need before heading to the supply yard.
Total Weight
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Weight per Foot
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Total Length
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Nominal Diameter
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Total Weight (Tons)
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Rebar weight is calculated by multiplying the length by the weight per foot for the specific rebar size. Each rebar size has a standard weight per foot based on its diameter and steel density.
Standard rebar sizes range from #2 (1/4") to #18 (2-1/4"). The most commonly used sizes in construction are #3, #4, #5, and #6 for residential projects, and larger sizes for commercial construction.
Knowing rebar weight is crucial for structural load calculations, material ordering, transportation planning, and cost estimation. It helps ensure proper reinforcement and prevents over or under-ordering materials.
#4 rebar weighs approximately 0.668 pounds per foot. This is based on its 1/2 inch nominal diameter and standard steel density used in reinforcing bar manufacturing.
This calculator uses standard US rebar sizes (#2-#18). For metric sizes, you would need the equivalent US size or use metric-specific weight tables with appropriate conversion factors.
The main factors are rebar size (diameter), length, and quantity. The material composition is standardized, so weight per foot is consistent for each size across manufacturers.
Rebar is typically required for structural concrete like foundations, slabs over 4 inches thick, driveways, and any load-bearing elements. Check local building codes and consult a structural engineer for specific requirements.