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| | | Minimum | | | Fifteen inch | 381 mm | (1 ft 3 in) |
| | | Narrow | | | 600 mm | 600 mm | (1 ft11+5⁄8 in) | | Two foot | 610 mm | (2 ft) | | Two foot three inch | 686 mm | (2 ft 3 in) | | | 750 mm | 750 mm | (2 ft5+1⁄2 in) | | Bosnian gauge | 760 mm | (2 ft5+15⁄16 in) | | Two foot six inch | 762 mm | (2 ft 6 in) | | | Swedish three-foot | 891 mm | (2 ft11+3⁄32 in) | | 900 mm | 900 mm | (2 ft11+7⁄16 in) | | Three-foot | 914 mm | (3 ft) | | Italian metre | 950 mm | (3 ft1+13⁄32 in) | | | Metre | 1,000 mm | (3 ft3+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 ft8+3⁄8 in) |
| | | Standard | 1,435 mm | (4 ft8+1⁄2 in) |
| | | Broad | | | Italian broad gauge | 1,445 mm | (4 ft8+7⁄8 in) | | Dresden gauge | 1,450 mm | (4 ft9+3⁄32 in) | | | Leipzig gauge | 1,458 mm | (4 ft9+13⁄32 in) | | | Toronto gauge | 1,495 mm | (4 ft10+7⁄8 in) | | | 1520 mm | 1,520 mm | (4 ft11+27⁄32 in) | | Five foot | 1,524 mm | (5 ft) | | | Pennsylvania gauge | 1,581 mm | (5 ft2+1⁄4 in) | | Pennsylvania gauge | 1,588 mm | (5 ft2+1⁄2 in) | | Five foot three inch | 1,600 mm | (5 ft 3 in) | | | Baltimore gauge | 1,638 mm | (5 ft4+1⁄2 in) | | | Iberian gauge | 1,668 mm | (5 ft5+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 ft1⁄4 in) | | | Breitspurbahn | 3,000 mm | (9 ft 101⁄8 in) |
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