Radius of turn = Vē/(g.tan(bank angle))
I would normally use V in m/s, radius in metres and g in m/s/s. But your second formula is identical to mine for V in fps and radius of turn in ft (g is 32.2 fps/s).
It's important to be self-consistent with units. These formulae generally use either m, s, kg, N; or ft, s, lb, lbf. Don't mix them, and don't use mph, kph or knots which will only work with added conversion factors.
Also bear in mind that V is TAS, not EAS. To convert from EAS (or CAS, or roughly IAS) to TAS at subsonic speeds, divide by SQRT(sigma) where sigma is the relative density.
G