List of track gauges

World RR Gauge Map.agr.png (914 mm)}} {{legend|#6000ff|Meter gauge (1,000 mm)}} {{legend|#0500e0|Cape gauge (1,067 mm)}} {{legend|#000000|Standard gauge (1,435 mm)}} {{legend|#c00100|Russian gauge (1,520 mm)}}

{{legend|#ffa000|Irish gauge (1,600 mm)}} {{legend|#ffc000|Iberian gauge (1,668 mm)}} {{legend|#ffe000|Indian gauge (1,676 mm)}}]] This list presents an overview of railway track gauges by size. A gauge is measured between the inner faces of the rails.

Minimum and ridable miniature railways
For ridable miniature railways and minimum gauge railways, the gauges are overlapping. There are also some extreme narrow gauge railways listed. See: Distinction between a ridable miniature railway and a minimum gauge railway for clarification.

Model railway gauges are covered in rail transport modelling scales.

Narrow gauge
Railways with a track gauge between and.