Model Railroad
Scale:
What is a Scale Model?
Scale simply
refers to the proportion of the model to the prototype.
Gauge is the width of the track, measured between the
railheads.
Read some specific information on
the different model railroad scales:
|
Scale |
Scale to
Foot |
Proportion |
|
O(17) |
.266" (6.75mm) |
1:45.2 |
|
O,On3,On2 |
.250" (6.35mm) |
1:48 |
|
S,Sn3 |
.188" (4.76mm) |
1:64 |
|
OO |
4.0mm (.1575") |
1:76.2 |
|
HO,HOn3,HOn2 |
3.5mm (.1378") |
1:87.1 |
|
TT, TTn3 |
.100" (2.54mm) |
1:120 |
|
N, Nn3 |
.075" (1.90mm) |
1:160 |
|
Z |
.055" (1.39mm) |
1:220 |

Typical model railroad scales are
(largest to smallest):
|
Scale |
Description |
|
1:12 |
Large scale |
|
1:13.7 |
7/8 inch scale |
|
1:20.3 |
G, three foot gauge on
gauge 1 track |
|
1:22.5 |
LGB and Bachmann |
|
1:24 |
Half scale |
|
1:29 |
Aristocraft, USA Trains,
standard gauge on #1 gauge |
|
1:32 |
I scale |
|
1:48 |
O scale |
|
1:64 |
S scale |
|
1:76.2 |
OO Scale |
|
1:87 |
HO scale |
|
1:120 |
TT scale |
|
1:160 |
N scale |
|
1:220 |
Z scale |
Check out our
track page where you
can find some reference to various scale / codes of commercial
grade model railroad track available at your local hobby store.

|