Engineering & Construction
Rebar Bend Allowance Calculator
Calculate the centreline arc of one rebar bend from the angle, the inner radius and the bar diameter.
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How to use the Rebar Bend Allowance Calculator
- 1Enter the bend angle in degrees.
- 2Enter the inner radius and the bar diameter in millimetres.
- 3Read the arc length along the centre of the bar.
Questions
Which line is measured?
The centreline. The radius used is the inner radius plus half the diameter.
Is this the same as a bend deduction?
No. The allowance is the length of the arc. A deduction is the amount removed from the out-to-out legs. The cutting-length calculator uses a deduction.