People who do not collect or operate toy trains and model railroads often do not understand the different sizes and scales that are available. This guide can help you to determine what you have so that you can list it in the correct category.
[NOTE: This was originally written to display with a fixed width font. It has been "adjusted", but the table and diagrams may not "line up" perfectly on your display.]
geMON MODEL RAILROAD GAUGES
SCALE or SCALESCALE DIMENSIONSTRACK GAUGE GAUGE RATIO (per one foot) DECIMAL METRIC NAME DECIMAL METRIC
Z 1:220 .054" 1.37mm .256" 6.5mm N 1:160 .075 1.9.354 9.0 TT 1:120 .100 2.54 .472 12.0 HO 1:87.1 .138 3.5 .650 16.5 S 1:64 .1875 4.76 .875 22.2 O 1:48 .25 6.35 1.25 31.75 #1 1:32 .375 9.5 1.75 44.45 G 1:24 .500 12.7 1.77 45.0 STD -- -- -- 2.125 54.0
Measure the gauge between the OUTSIDE of the flange on wheels (1),or between theINSIDE of the outer rails (2). (In the case of 3-rail track, measure between the "running rails" -- the rails on which the wheels run.) NOTE: The measurement on the wheels willbe slightly less than the "TRACK GAUGE" shown above. This is to allow for necessary clearance.
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