OP Calc

Oblique Plane Calculator is an offline angle-conversion utility. Enter sagittal (LAT) and coronal (AP) angles to calculate the oblique-plane angle (OBL) and the Alpha angle (the angle between the oblique plane and coronal plane). Features • Calculate OBL and Alpha angles from LAT and AP angulation • Set left or right side and anterior/posterior and medial/lateral directions • View a dynamic diagram of the OBL vector and Alpha angle • Light and dark appearance • No account, no data collection, and offline use