SM Scale Conversion

The Converter takes the hardwork out off finding out measurements, you can either convert a known size and scale into another or use the 1/1 option and measure a real world size to any other scale listed.

Simply enter the amount, unit (defaults to mm) and scale(defaults to 1:1) to convert from and select the units and scale to convert to.

Click the button and the result will be displayed.

Common Model Railway Gauges:

16.5mm: Used for OO and HO scales.

9mm: Used for N scale.

32mm: Used for O scale.

45mm: Used for G scale.

12mm: Used for TT scale.

6.5mm: Used for Z scale.

1/4th Grand Scale

1/8th Live Steam

1/22nd Guage 3

1/29th Guage 2

1/32nd Guage 1