G scale is 1:29. 1 Foot = 0.413793103 or 10.510344816 mm.
45 mm track gauge = 51.377952813" between the rails.


LGB Track gauge is 45 mm. If we pretend this is 3 foot gauge, it's 15 mm per foot. 1:20.32 ratio. This has been designated Fn3. See NMRA STANDARDS S-1.2 Standards for Scale Models

Arch Bar Trucks with 33 in. ribbed back wheels (1:29 Scale Ratio "G" Scale) 1.138 inches actual
Kadee Product Number: 972
Walthers Product Number: 380-972
wheels would be 23.12" at 15 mm to the foot

ICRR Rail Specifications
NMRA Data Sheet Rail Size
Trains Forum - Rail Heights
RGS 30 pound/yard rail = 3.125" high = 0.153" at 15 mm to the foot
DRGW 70 pound/yard rail = 4.625" high = 0.227" at 15 mm to the foot

Jim McDaniel Gallery photo's of scratch-built cars and trucks