| Model Scale and Gauge Chart |
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| Model Train Scale |
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Gauge Number / Name
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Gauge of Track
(space between outer rails)
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Scale
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O Gauge
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1 .25" - 31.8mm
0.25" = 1 scale foot
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1:48 US
1:43 UK
1:45.2
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Standard Gauge
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2 .125" - 53.975mm
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**
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#1 Gauge
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1 .75" – 45.0mm
0.375" = 1 scale foot
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1:32
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#2 Gauge
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2.0" - 50.8mm
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**
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#3 Gauge
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2 .5" - 64mm
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**
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#4 Gauge
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3 .25" (*1910)
2 .8125" (*1892)
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**
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LGB G Scale
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1 .75" – 45.0mm
0.533" = 1 scale foot
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1:22.5
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G Gauge
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1.75" – 45.0mm
1:32 - 0.375" = 1 scale foot
1:29 - 0.393" = 1 scale foot
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1:32
1:29
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G Narrow Gauge
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1.75" – 45.0mm
1:24 - 0.50" = 1 scale foot
(This is the Scale Garden Dwellings’ Designs In)
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1:24
1:22.5
1:20.5
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Lionel 2 7/8"
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2 .875" (*1900)
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**
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* Year
** Asterisk denotes a gauge, which has not been given a precise scale.
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