|Scale||7⁄8 in to 1 ft|
|Model gauge||45 mm (1.772 in)|
and 32 mm (1.26 in)
|Prototype gauge||Narrow gauge railway, 2 ft (610 mm)|
Minimum gauge railway, 18 in (457 mm)
SE scale is a designation used by some modellers to describe miniature (model) trains which run on either Gauge 1 (45 mm or 1.772 in) track or O gauge (32 mm or 1.26 in) track. In SE scale, 7/8 of an inch equals one foot, which is a ratio of 1:13.7. On 45 mm (1.772 in) gauge track this represents real life narrow gauge railways that are 2 ft (610 mm) gauge, while on 32 mm (1.26 in) gauge track this represents 18 in (457 mm) railways.
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