Rebar Bend Calculator
Calculate bend deductions, total length, and bar weight for steel reinforcement bending. Perfect for construction and concrete projects.
Step 1: Rebar Specifications
16 mm
90°
4d
Rebar Bending Standards
Standard bend radii are typically 4-6 times the bar diameter. Minimum bend diameters vary by rebar size and grade. Consult local building codes for specific requirements.
Step 2: Dimensions & Quantity
Bend Allowance Formula
Bend allowance = (π × Bend radius × Bend angle) / 180. Total developed length = Sum of straight lengths + Bend allowance.
Rebar Bending Results
Summary
Bar Comparison
Breakdown
Bend Allowance
56.5 mm
For 16mm bar with 90° bend at 4d radius
Total Developed Length
2056.5 mm
Single Bar Weight
3.24 kg
Total Bars Weight
32.4 kg
Bend Radius (Actual)
64 mm
Bar Size Comparison
| Bar Diameter (mm) | Bend Allowance (90°) | Weight per Meter | Total Weight |
|---|
Length Breakdown
Bending Formulas
Bend Allowance = (π × R × θ) / 180
Where: R = Bend radius (mm), θ = Bend angle (degrees). Total length = Straight lengths + Bend allowance. Weight = Volume × Density.
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