There are 4 types of scales:
- 1:n - for example 1:8 scale means the figure is one-eighth of the real
- n" - is just the height of a figure, for example a 6″ figure is 6 inches tall
- Gauge - means the distance between the inside edges of the two running rails—the width of the track that the train’s wheels run on
- Some odd ones - such as
- 16mm Narrow Gauge, use for modelling narrow-gauge railways at a scale of 16 millimetres on the model for every 1 foot on the real railway
- Minifig Scale, which is meant to measure the heigh of a Lego Minifig to an average person
- Q, ZO, s, HO, TT, N, Z, ZZ, T Scales which are just an alternative way of expressing a 1:n Scale

Note that we do not cover yet for n:1 scales (where the model is larger than the original) and that T-Scale is used for two different 1:n scales .
Some of ours are unusual looking
We have combined these when they represent the same measurement. While that is unorthodox it allows you to find all items, for example 1:12 (6”) will show you model cars (generally measure in 1:n) and figures (often measures in n" that work together.
Here are all of hobbyDB's scales (if yours is missing let us know and we will add it) -
1:1 (72”)
1:2 (36”)
1:3 (24”)
1:4 (18”)
1:5
1:6 (12”)
1:7
1:8 (10” or VII Gauge)
1:9 (8”)
1:10 (7”)
1:11 (V Gauge)
1:12 (6”)
1:13
1:14 (5.5”)
1:15
1:16 (5” or III Gauge)
1:17
1:18 (3.75”-4”)
1:19 (16mm Narrow Gauge)
1:20
1:21 (3.5”)
1:22
1:23
1:24 (3”)
1:25
1:26
1:27
1:28
1:29 (Gauge 2 post 1909)
1:30 (2.5”)
1:31
1:32 (Gauge I)
1:33
1:34
1:35
1:36 (2”)
1:37
1:38 (Minifig Scale)
1:39
1:40 (1.75”)
1:41
1:42
1:43 (Gauge 0 UK)
1:44
1:45 (Q Scale or Gauge 0 Europe))
1:46
1:47
1:48 (1.5” or Gauge 0 USA)
1:49
1:50
1:51
1:52
1:53
1:54
1:55
1:56
1:57
1:58
1:59
1:60 (Z0 Scale)
1:61
1:62
1:63
1:64 (S Scale)
1:65
1:66
1:67
1:68
1:69
1:70
1:71
1:72 (1”)
1:73
1:74
1:75
1:76
1:77
1:78
1:79
1:80
1:81
1:82
1:83
1:84
1:85
1:86
1:87 (HO Scale)
1:88
1:89
1:90
1:91
1:92
1:93
1:94
1:95
1:96
1:97
1:98
1:99
1:108
1:100 (TT Scale modern)
1:110
1:120 (TT Scale traditional)
1:123
1:125
1:130
1:140
1:144 (0.5”)
1:145
1:148 (N Scale)
1:150 (N Scale)
1:152 (2mm Scale)
1:160 (N Scale)
1:180
1:185
1:187
1:150
1:200
1:220 (Z Scale)
1:225
1:240
1:250
1:253
1:270
1:285
1:288
1:290
1:300 (ZZ Scale)
1:320
1:350
1:360
1:375
1:390
1:400
1:426
1:432
1:450 (T Scale)
1:460
1:480 (T Scale)
1:500
1:535
1:542
1:550
1:570
1:600
1:700
1:720
1:800
1:900
1:1000
1:1200
1:1250
1:2000
1:2400
1:2500
1:3000
1:3900
1:4800
1:6000
1:20000