Before everyone plugs Zeke's formula into their various flight calculators, be aware that his formula assumes the calculator returns the function atan()in radians (there are PI radians in 180 degrees). The formula is fine for Excel.
If your calculator works in degrees, drop the 57.3 bit.
If you want to impress your friends, you can generalise Zeke's formula for any turn rate N by simply adding it:
AoB = 57.3 * atan(V * N / 362.1)
ET