Model Train Scale and Guage
Some people think that scale and gauge are interchangeable terms, but that is not the case.
Model Railway Scale
The scale is the proportion of the model train to the real thing.
eg. HO scale locomotives are 1/87 the size of the real-life locomotive, or a HO scale locomotive is 87 times smaller than the real locomotive.
The most popular scales in model railways include
- O (1:48)
- HO (1:87)
- N (1:160)
- Z (1:220)
Model Railway Gauge
The Gauge is the width between the inside running edge of the track’s rails.
- O 31.75mm (1.25”)
- HO 16.5mm (0.649”)
- N 8.97mm (0.353”)
- Z 6.5mm (0.257”)
There are more scales than the ones shown above but they are less common and harder to find.
All the Model Train Scales
G Scale is a 1:22.5 ratio. It is the perfect choice for the garden set-up. This scale integrates well existing and planned scenery.
1 Scale is a 1.32 ratio
O Scale is a 1:48 ratio. It is a popular choice for young children because they are able to easily handle them, and they are big enough to be impressive and playable.
S Scale is a 1:64 ratio. It is larger than the HO and is popular among those with plenty of room.
OO Scale is a 1:76.2 ratio
HO Scale is a 1:87 ratio. The most popular scale of the model train. There is an endless supply of trains, cars, tracks, buildings, and scenery. The detail on HO is good and a fabulous setup can be put together in a reasonable amount of space.
TT Scale is a 1:120 ratio
N Scale is a 1:160 ratio. N scale is about half the size of HO and can cover more ground if you are limited with space. Working with models and scenery this tiny can be challenging.
Z Scale is a 1:220 ratio. It is tiny and highly detailed and is an excellent choice if you have limited space. This scale is even more challenging to work with than the N scale.
T Scale is a 1:450 ratio
Whatever model train scale you choose, you can be sure of many hours of enjoyment.