Travelcard Zone 3 is the third outward zone of Transport for London's zonal system used for calculating co-ordinated inter-modal Travelcard fares within London. In the Travelcard zonal system, London is split into six (approximately concentric) zones for the purpose of determining the cost of a Travelcard. The zone is also used for pricing London Underground and Docklands Light Railway single journeys, but not journeys undertaken entirely by bus or tram, for which a city-wide flat fare applies.
The stations marked with ° are also in Travelcard Zone 2. The stations marked with * are also in Travelcard Zone 4. In calculating fares to or from stations on the boundary of two zones, the station is assumed to be in the zone which yields the cheaper fare.