A Mitre Bend is prepared by angle cutting and welding pipe ends of the cut pieces, usually resulting in 45° and 90° bends. Mitre bends frequently occur in low pressure pipelines like potable and wastewater lines or as casing in steel-in-steel situations. Ple4Win allows these bends to be calculated with the theory for smooth bends under certain conditions. Two input data are required (number of kinks and either geometric bend radius or length of segments) to enable the program to calculate the equivalent bend radius and therefore the load on these types of bends. Calculation can be done according to TGSL-1986 or according to NEN 3650-1:2020. The limits for the field of application are clearly indicated and based on mitre bend test results as well and pipeline codes.