The scales shown are considered to be the accepted standard. However, many manufacturers vary from these numbers. For instance, it is common for “G” scale to be cited as 1:24.
| F-Scale | G-Scale | O-Scale | S-Scale | HO-Scale | N-Scale | Z-Scale |
|---|---|---|---|---|---|---|
| 1:20.3 | 1:22.5 | 1:48 | 1:64 | 1:87.1 | 1:160 | 1:220 |