Compare Scales

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Deciding which scale to model in can be a difficult task for the beginner and experienced model maker. This page aims to provide some basic data about each scale including links to specialist societies and mailing lists. The class 66 diesel locomotive is available in a number of different scales and as examples become available to me I will include photographs to illustrate the differences between the scales.
Three quarter view of two class 66 diesel locomotives.The larger model is Bachmann's OO (1:76) and the smaller one is Dapol's British N Gauge (1:148)
Side view of two class 66 diesel locomotives. The larger model is Bachmann's OO (1:76) and the smaller one is Dapol's British N Gauge (1:148)
Front view of two class 66 diesel locomotives. The larger model is Bachmann's OO (1:76) and the smaller one is Dapol's British N Gauge (1:148)

 

Name

Ratio

Gauge

xx:foot

Contacts

Mailing List

T Gauge

1:450

3.2 mm

0.7

T Gauge Headquarters

Talking T Gauge

Z Gauge

1:220

6.5mm

1.39mm

Z Club GB
Z Club 92

Z_Scale American Z Scale
Z Gauge British and European

European / American N Gauge

1:160

9mm

1.9mm

N Gauge Society - this site!

N Scale YahooGroup

N YahooGroup

2mm Finescale

1:152

9.42mm

2.0mm

2mm Association

Members only

Japanese N Gauge

1:150

9mm

2.03mm

N Gauge Society - this site!

JRForum YahooGroup

British N Gauge

1:148

9mm

2 1/16mm

N Gauge Society - this site!

N Gauge YahooGroup

Modern N Gauge YahooGroup

European / American TT

1:120

12mm

1/10inch 2.54mm

Triang TT

1:101.6

12mm

3mm

3mm Society

TM

1:101.6

13.5mm

3mm

3mm Society

Finescale TT

1:101.6

14.125mm or 14.2mm

3mm

3mm Society

HO

1:87

16.5mm

3.5mm

British 1:87 Scale Society

Proto 87 (Finescale HO)

1:87

16.5mm

3.5mm

Club Proto 87
Proto:87

Japanese HO

1:80

16.5mm

3.8mm

Japanese Railway Society

JRForum eGroup

British Scale 4

1:76

18.83mm

4mm

Scale 4 Society

British EM

1:76

18.2mm

4mm

EM Gauge Society

British OO

1:76

16.5mm

4mm

The Double O Gauge Association

OO Gauge YahooGroup

S Gauge

1:64

7/8 inch

3/16 inch

S Scale Model Railway Society

American O Gauge

1:48

1 1/4inch (31.75mm)

1/4 inch

American Proto48

1:48

1.176inch (29.87mm)

1/4 inch

Society of Proto-48 Enthusiasts

European O Gauge

1:45

32mm

6.77mm

Arge Spur 0

British Scale 7

1:43.54

33mm

7mm

British O Gauge

1:43.54

32mm

7mm

Gauge O Guild

Gauge 1

1:32

45mm

10mm

American G Scale

1:29

45mm

10.5mm

European G Scale

1:22.5

45mm

13.55mm