| |||
| Minimum | |||
| Fifteen inch | 381 mm | (1 ft 3 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 ft 1 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) | |