Originally Posted by
PW305
As far as I know lateral stability is usually measured in units of effective dihedral. A high wing airplane with a wing at zero degrees (no dihedal) inherently has a few degrees of effective dihedral due to the keel effect. Swept wing airplanes also have a few degrees of effective dihedral.
High wing ~5 degrees. Swept wing depends on the degree of sweep and I do not know the formula.