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World map, rail gauge by region

The vast majority of rapid transit systems use 1,435 mm (4 ft 8 12 in) standard gauge, but there are also systems that use 1,000 mm (3 ft 3 38 in), 1,067 mm (3 ft 6 in), 1,524 mm (5 ft), and 1,676 mm (5 ft 6 in) gauges, among others.

Standard gauge railways and rapid transit systems are dominant in Europe, North America, West Asia, North Africa and China. Some of the largest and oldest subway systems in the world use standard gauge in agreement with the country wide dominant usage for track gauge, e.g. London Underground (1863), Chicago "L" (1892), Vienna Metro (1898), Paris Métro (1900), Berlin U-Bahn (1902), New York City Subway (1904), Stockholm Metro (1950), Milan Metro (1964), Mexico City Metro (1969), Beijing Subway (1969), Seoul Metropolitan Subway (1974), Shanghai Metro (1995), Guangzhou Metro (1997), Shenzhen Metro (2004). The following list contains rapid transit systems that are either (1) non-standard gauge, or are (2) standard gauge but the dominant gauge of railways in a given country is non-standard. For references for the figures, see each system's page.

broad gauge (>1,435 mm)
standard gauge (1,435 mm)
narrow gauge (<1,435 mm)
rubber-tyred (no track gauge)
System Country Gauge Dominant railway gauge in a country Notes
Buenos Aires Metro  Argentina 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Yerevan Metro  Armenia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Baku Metro  Azerbaijan 1,524 mm

(5 ft)

1,520 mm

(4 ft  11 2732 in)

[a]
Minsk Metro  Belarus 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Antwerp Pre-metro  Belgium 1,000 mm

(3 ft 3 38 in)

1,435 mm

(4 ft 8 12 in)

Belo Horizonte Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Brasília Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Porto Alegre Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Recife Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Rio de Janeiro Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Salvador Metro  Brazil 1,435 mm

(4 ft 8 12 in)

1,000 mm

(3 ft 3 38 in)

São Paulo Metro  Brazil 1,600 mm

(5 ft 3 in)

1,000 mm

(3 ft 3 38 in)

Mixed-gauge system – new lines are 1,435 mm (4 ft 8 12 in)
Toronto Subway  Canada 1,495 mm

(4 ft 10 78 in)

1,435 mm

(4 ft 8 12 in)

Mixed-gauge system – Line 3 is 1,435 mm (4 ft 8 12 in)
Santiago Metro  Chile 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Valparaíso Metro  Chile 1,676 mm

(5 ft 6 in)

1,676 mm

(5 ft 6 in)

Medellín Metro  Colombia 1,435 mm

(4 ft 8 12 in)

914 mm

(3 ft)

Helsinki Metro  Finland 1,524 mm

(5 ft)

1,524 mm

(5 ft)

Tbilisi Metro  Georgia 1,524 mm

(5 ft)

1,520 mm

(4 ft  11 2732 in)

[a]
Hong Kong Mass Transit Railway  Hong Kong 1,432 mm

(4 ft 8 38 in)

1,435 mm

(4 ft 8 12 in)

Mixed-gauge system – some lines are 1,435 mm (4 ft 8 12 in)
Bangalore Metro  India 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Chennai Metro  India 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Delhi Metro  India 1,676 mm

(5 ft 6 in)

1,676 mm

(5 ft 6 in)

Mixed-gauge system – new lines are 1,435 mm (4 ft 8 12 in)
Gurgaon Metro  India 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Jaipur Metro  India 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Kolkata Metro  India 1,676 mm

(5 ft 6 in)

1,676 mm

(5 ft 6 in)

Mumbai Metro  India 1,435 mm

(4 ft 8 12 in)

1,676 mm

(5 ft 6 in)

Fukuoka City Subway  Japan 1,067 mm

(3 ft 6 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – Nanakuma Line is 1,435 mm (4 ft 8 12 in)
Astram Line (Hiroshima)  Japan No track gauge 1,067 mm

(3 ft 6 in)

Rubber-tyred
Kobe Municipal Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Kyoto Municipal Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Nagoya Municipal Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – Tsurumai, Sakura-dori, and Kamiiida lines are 1,067 mm (3 ft 6 in)
Osaka Municipal Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Sapporo Municipal Subway  Japan No track gauge 1,067 mm

(3 ft 6 in)

Rubber-tyred
Sendai Subway  Japan 1,067 mm

(3 ft 6 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – Tōzai Line is 1,435 mm (4 ft 8 12 in)
Tokyo Metro, TWR Rinkai Line  Japan 1,067 mm

(3 ft 6 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – Ginza and Marunouchi lines are 1,435 mm (4 ft 8 12 in)
Toei Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – Mita Line is 1,067 mm (3 ft 6 in), Shinjuku Line is 1,372 mm (4 ft 6 in)
Yokohama Municipal Subway  Japan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Minatomirai Line (Yokohama)  Japan 1,067 mm

(3 ft 6 in)

1,067 mm

(3 ft 6 in)

Almaty Metro  Kazakhstan 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Kuala Lumpur Rapid Rail  Malaysia 1,435 mm

(4 ft 8 12 in)

1,000 mm

(3 ft 3 38 in)

Manila Light Rail Transit System, Manila Metro Rail Transit System  Philippines 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Lisbon Metro  Portugal 1,435 mm

(4 ft 8 12 in)

1,668 mm

(5 ft  5 2132 in)

Porto Metro  Portugal 1,435 mm

(4 ft 8 12 in)

1,668 mm

(5 ft  5 2132 in)

Kazan Metro  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Moscow Metro  Russia 1,524 mm

(5 ft)

1,520 mm

(4 ft  11 2732 in)

[a]
Nizhny Novgorod Metro  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Novosibirsk Metro  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Saint Petersburg Metro  Russia 1,524 mm

(5 ft)

1,520 mm

(4 ft  11 2732 in)

[a]
Samara Metro  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Volgograd Metrotram  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Yekaterinburg Metro  Russia 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Singapore Mass Rapid Transit  Singapore 1,435 mm

(4 ft 8 12 in)

1,000 mm

(3 ft 3 38 in)

Barcelona Metro  Spain 1,435 mm

(4 ft 8 12 in)

1,668 mm

(5 ft  5 2132 in)

Mixed-gauge system – Line 1 is 1,668 mm (5 ft 5 2132 in), Line 8 is 1,000 mm (3 ft 3 38 in)
Bilbao Metro  Spain 1,000 mm

(3 ft 3 38 in)

1,668 mm

(5 ft  5 2132 in)

Madrid Metro  Spain 1,445 mm

(4 ft 8 7⁄8 in)

1,668 mm

(5 ft  5 2132 in)

Mixed-gauge system – Metro Ligero lines are 1,435 mm (4 ft 8 12 in)
Málaga Metro  Spain 1,435 mm

(4 ft 8 12 in)

1,668 mm

(5 ft  5 2132 in)

Palma Metro  Spain 1,000 mm

(3 ft 3 38 in)

1,668 mm

(5 ft  5 2132 in)

Seville Metro  Spain 1,435 mm

(4 ft 8 12 in)

1,668 mm

(5 ft  5 2132 in)

Valencia Metro  Spain 1,000 mm

(3 ft 3 38 in)

1,668 mm

(5 ft  5 2132 in)

Kaohsiung Mass Rapid Transit  Taiwan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Taipei Metro  Taiwan 1,435 mm

(4 ft 8 12 in)

1,067 mm

(3 ft 6 in)

Mixed-gauge system – medium-capacity lines use 1,880 mm (6 ft 2 in)
Bangkok Metropolitan Rapid Transit, Bangkok Skytrain  Thailand 1,435 mm

(4 ft 8 12 in)

1,000 mm

(3 ft 3 38 in)

Dnipro Metro  Ukraine 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Kharkiv Metro  Ukraine 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Kiev Metro  Ukraine 1,524 mm

(5 ft)

1,520 mm

(4 ft  11 2732 in)

[a]
Kryvyi Rih Metrotram  Ukraine 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Glasgow Subway  United Kingdom 1,219 mm

(4 ft)

1,435 mm

(4 ft 8 12 in)

New York City Subway  USA 1,435 mm

(4 ft 8 12 in)

1,435 mm

(4 ft 8 12 in)

Philadelphia SEPTA
(subway)
 USA 1,581 mm

(5 ft 2 14 in)

1,435 mm

(4 ft 8 12 in)

Mixed-gauge system – the Broad Street Line is 1,435 mm (4 ft 8 12 in)
San Francisco Bay Area Rapid Transit  USA 1,676 mm

(5 ft 6 in)

1,435 mm

(4 ft 8 12 in)

Washington Metro  USA 1,429 mm

(4 ft 8 14 in)

1,435 mm

(4 ft 8 12 in)

Tashkent Metro  Uzbekistan 1,520 mm

(4 ft  11 2732 in)

1,520 mm

(4 ft  11 2732 in)

Footnotes

  1. ^ a b c d e Track gauge in Russia and Soviet Union had been 1,524 mm (5 ft) until 1970, when it was redefined to 1,520 mm (4 ft  11 2732 in). These two gauges are interoperable and older, wider tracks are being converted to the new standard only in case of refurbishment.

See also