Gauge (US /ˈɡ/,[2] UK /ˈɡ/[2] or /ˈɡɔː/) may refer to:


Mathematics and physics

Railway practice

  • Track gauge, the distance between the two rails forming a railway track
  • Loading gauge, the maximum width and height of vehicles (engines, loaded wagons, etc.).
  • Structure gauge, the minimum size of bridges, tunnels, platforms, etc.
    • always bigger than loading gauge
  • Axle load, the weight that an axle exerts on track
  • Variable gauge, system to allow railway vehicles to travel across a break of gauge

Other uses