Full size to n scale - Model Railroader Magazine
Andrew Walker
Updated on April 07, 2026
R. T. POTEET
ronsal
I am having a little trouble getting from 1:1 to 1:160. How do I convert full size measurement to a working useable measurement in n scale, such as .030"?
I'm just al little confused, my friend: .030 what? If you are talking about a prototype measurement of ".030" and you wan't to convert that to N-Scale please call me from your local asylum to let me know how you are doing. .030"/160 equals .0001875" or 1/5333.333333". To the best of my knowledge only engineers and machinists work with figures like that .
If, on the other hand you have an N-Scale measurement of .030" you multiply that out by 160 and it renders to 4.8"--.030" X 160.