For interest sake (read "bored"
), I made a few calculations, based on an altitude of 2000 feet AMSL, ISA +15, 25 degrees of bank and nil wind.
100 KIAS = 106 KTAS = 0.56 NM turn radius
125 KIAS = 132 KTAS = 0.70 NM
150 KIAS = 159 KTAS = 0.84 NM
175 KIAS = 185 KTAS = 1.07 NM
200 KIAS = 211KTAS = 1.40 NM
225 KIAS = 238 KTAS = 1.77 NM
250 KIAS = 264 KTAS = 2.18 NM
Linear interpolation should work out pretty good.