BendCalc is a bend deduction and bend allowance calculator for sheet metal air-bending. Actually BendCalc is more than that, BendCalc is four calculators in one.

BendCalc gives you flexibility to calculate depending on the data you have. Don't know the K-Factor? BendCalc will calculate one taking into account material type and tool radius. When air-bending, V-Width selection affects final radius which, means it also affects bend deduction. Find out what that radius will be and what the deduction is. BendCalc also warns you if you choose a V-Width out of range for your thickness. Easily calculate the K-Factor to be used in 3D design software. Reverse engineer the K-Factor from your own validated data. Works in Inch or in Metric system.

Calculator 1: Calculates Bend Deduction and Bend Allowance given bend angle, material thickness, radius and K-Factor.

Calculator 2: Calculates Bend Deduction and Bend Allowance given bend angle, material thickness, tool radius, and material type.

Calculator 3: Calculates Bend Deduction and inner radius, given bend angle, material thickness, material type and V-Width.
BendCalc also warns you if you choose a V-Width out of standard range for your material thickness. Works in both the Inch and Metric system.

Calculator 4: Calculates the K-Factor given the bend angle, material thickness, radius and bend deduction.