Scale Reference Guide

40 SERIES 40 Series 50 SERIES 50 Series 60 SERIES 60 Series
SCALE RATIO GAUGE SCALE RATIO GAUGE SCALE RATIO GAUGE
#13 1:80 13 mm #16 1:80 16.5 mm #1 1:32 45 mm
3 mm 1:101 14.2 mm 4 mm 1:76 19 mm #1m 1:32 32 mm
HOe 1:87 9 mm EM 1:76 18.2 mm #1n3 1:32 28.6 mm
HOm/n30 1:87 12 mm HO 1:87 16.5 mm 1/2" 1:24 45 mm
HOn3 1:87 10.5 mm Om 1:45 22.5 mm 16 mm 1:19 32 mm
N 1:160 9 mm On2 1:48 12.7 mm 35 mm 1:30 35 mm
N (JP) 1:150 9 mm ON3 1:48 19 mm 45 mm 1:30 45 mm
N (UK) 1:148 9 mm ON30 1:48 16.5 mm FN3 1:20 45 mm
O14 1:43 14 mm OO 1:76 16.5 mm G Several 45 mm
OO9 1:76 9 mm P4/S4 1:76 18.89 mm IIm 1:22 45 mm
OO12 1:76 12 mm P48n3 1:48 19.05 mm O (DE, RU) 1:45 32 mm
P87n3 1:87 10.5 mm P64 1:64 22.4 mm O (UK/FR) 1:43 32 mm
TT 1:120 12 mm P64n3 1:64 14.3 mm O (US) 1:48 32 mm
TTn3 1:120 9 mm P87 1:87 16.5 mm P20:32n3 1:20 45 mm
TT9 1:120 9 mm S 1:64 22.42 mm P32 1:32 44.85 mm
      Sm 1:64 16.5 mm P32n3 1:32 28.6 mm
      Sn3 1:64 14.3 mm P48 1:48 29.9 mm
      ZO 1:60 24 mm S7 1:43 33 mm
            SE 1:14 45 mm

Note: In some cases where the RATIO contained a decimal, it has been rounded to the nearest whole number.

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