Model railway scale calculator
Convert between the real world and the layout.
Prototype would be doing
115.2 km/h
| mph for the prototype | 71.58 |
| Model speed | 200 mm/s |
| Crosses 1 m of layout in | 5 s |
At 1:160 (N), standard gauge (1435 mm) scales to 8.97 mm, against the 9 mm track the scale is sold on. Metre gauge works out at 6.25 mm, the reason Swiss narrow gauge at this scale runs on 6.5 mm (Nm) track.