N scale - Wikipedia
https://en.wikipedia.org/wiki/N_scaleIn the United States and Europe, models of standard gauge [1,435 mm (4 ft 8+1⁄2 in)] trains are built to 1:160 scale and made so that they run on N gauge track, but in some other countries changes are made. Finescale modellers also use variants of normal N scale. In the United Kingdom, a scale of 1:148 is used for commercially produced mo…