Track gauge conversion

Track gauge
By transport mode
By size (list)
Graphic list of track gauges
  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 686 mm (2 ft 3 in)
  750 mm 750 mm (2 ft 5+1⁄2 in)
Bosnian gauge 760 mm (2 ft 5+15⁄16 in)
Two foot six inch 762 mm (2 ft 6 in)
  Swedish three foot 891 mm (2 ft 11+3⁄32 in)
900 mm 900 mm (2 ft 11+7⁄16 in)
Three foot 914 mm (3 ft)
Italian metre 950 mm (3 ft1+13⁄32 in)
  Metre 1,000 mm (3 ft 3+3⁄8 in)
  Three foot six inch 1,067 mm (3 ft 6 in)
  Four foot 1,219 mm (4 ft)
  Four foot six inch 1,372 mm (4 ft 6 in)
  1432 mm 1,432 mm (4 ft 8+3⁄8 in)
  Standard 1,435 mm (4 ft 8+1⁄2 in)
  Broad
  Italian broad gauge 1,445 mm (4 ft 8+7⁄8 in)
Dresden gauge 1,450 mm (4 ft 9+3⁄32 in)
  Leipzig gauge 1,458 mm (4 ft 9+13⁄32 in)
  Toronto gauge 1,495 mm (4 ft 10+7⁄8 in)
  1520 mm 1,520 mm (4 ft 11+27⁄32 in)
Five foot 1,524 mm (5 ft)
  Pennsylvania gauge 1,581 mm (5 ft 2+1⁄4 in)
Pennsylvania gauge 1,588 mm (5 ft 2+1⁄2 in)
Five foot three inch 1,600 mm (5 ft 3 in)
  Baltimore gauge 1,638 mm (5 ft 4+1⁄2 in)
  Iberian gauge 1,668 mm (5 ft 5+21⁄32 in)
Five foot six inch 1,676 mm (5 ft 6 in)
  Six foot 1,829 mm (6 ft)
  Brunel 2,140 mm (7 ft 1⁄4 in)
  Breitspurbahn 3,000 mm (9 ft 101⁄8 in)
Change of gauge
By location
World map, rail gauge by region
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Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.