Track gauges around the world
Different rail gauges are in use around the world. The rail systems of most countries predominantly use one gauge or another as a national standard, in some cases due to a legal mandate.
| Gauge | Name | Installation (km) | Installation (miles) | Usage |
|---|---|---|---|---|
| 1,000 mm (3 ft 3+3⁄8 in) | Metre gauge | 95,000 | 59,000 | |
| 1,067 mm (3 ft 6 in) | Three foot six inch gauge | 112,000 | 70,000 | |
| 1,435 mm (4 ft 8+1⁄2 in) | Standard gauge | 720,000 | 450,000 |  Alstin,  Caphiria,  Cartadania,  Pelaxia,  Urcea,  Yonderre
|
| 1,520 mm (4 ft 11+27⁄32 in) | Five foot and 1520 mm gauge | 220,000 | 140,000 | |
| 1,524 mm (5 ft) | Meridian Gauge/Northern Standard | 102,023 | 63,394 | Koskenkorva (KR),  Faneria,  Vithinja
|
| 1,600 mm (5 ft 3 in) | Five foot three inch gauge | 9,800 | 6,100 |  Kiravian Federacy (except Koskenkorva)
|
| 1,668 mm (5 ft 5+21⁄32 in) | Pelaxian gauge | 15,394 | 9,565 | Pelaxia
|
| 1,676 mm (5 ft 6 in) | Five foot six inch gauge | 134,008 | 83,269 |