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  2. Metre-gauge railway - Wikipedia

    en.wikipedia.org/wiki/Metre-gauge_railway

    By size Minimum Fifteen inch: 381 mm (15 in) Narrow 600 mm: 600 mm (1 ft 11 + 5 ⁄ 8 in) Two foot: 610 mm (2 ft) Two foot three inch: ... Sections of 1,000 mm ...

  3. List of track gauges - Wikipedia

    en.wikipedia.org/wiki/List_of_track_gauges

    By size Minimum Fifteen inch ... 1,000 mm (3 ft 3 + 3 ... St. Moritz–Corviglia funicular (upper section of 1,616 metres or 5,302 feet route-length only ...

  4. List of gauge conversions - Wikipedia

    en.wikipedia.org/wiki/List_of_gauge_conversions

    1,000 mm (3 ft 3 + 3 ⁄ 8 in) 1,435 mm (4 ft 8 + 1 ⁄ 2 in) 1920 onward Thailand: From 1920, the standard gauge part of the Siam railway amounting to 1,000 km (620 mi) was converted first to third rail, and then to 1,000 mm (3 ft 3 + 3 ⁄ 8 in) (metre gauge) making the whole system metre gauge. [19] 1,435 mm (4 ft 8 + 1 ⁄ 2 in)

  5. Narrow-gauge railway - Wikipedia

    en.wikipedia.org/wiki/Narrow-gauge_railway

    Comparison of 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge (blue) and 3 ft 6 in (1,067 mm) (red) width; the difference is 14.5 in (370 mm), or about 26 per cent of standard gauge. 1,067 mm ( 3 ft 6 in ) between the inside of the rail heads, its name and classification vary worldwide and it has about 112,000 kilometres (70,000 mi) of track.

  6. Standard-gauge railway - Wikipedia

    en.wikipedia.org/wiki/Standard-gauge_railway

    All other railways use 1,668 mm (5 ft 5 + 21 ⁄ 32 in) (broad gauge); some use 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge; Decauville uses 500 mm (19 + 3 ⁄ 4 in) gauge. Planned and under construction high-speed railways to use 1,668 mm ( 5 ft 5 + 21 ⁄ 32 in ) to maintain interoperability with the rest of the network.

  7. Millimetre - Wikipedia

    en.wikipedia.org/wiki/Millimetre

    Different lengths as in respect to the electromagnetic spectrum, measured by the metre and its derived scales.The microwave is between 1 meter to 1 millimeter.. The millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the International System of Units (SI), equal to one thousandth of a metre, which is the SI base unit of length.

  8. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [1] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.

  9. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    27.43 meters – distance between bases on a baseball field (90 feet) 28 meters – length of a standard FIBA basketball court; 28.65 meters – length of an NBA basketball court (94 feet) 49 meters – width of an American football field (53 1 ⁄ 3 yards) 59.436 meters – width of a Canadian football field (65 yards)