Sheet Metal Bend Allowance Calculator

Bend Angle (a) (degrees)
Thickness (T) (inches)
Inside Bend Radius (R) (Inches)
Must be greater than 90 and
less than 180 degrees
Bend Allowance (Sheet Metal Change in
Length Due To Bending Operation)
 

Sheet Metal Bend Allowance Calculator determines the bend allowance (amount of metal to be added to the total layout) when forming sheet metal. Most sheet metal materials will conform to the calculations.