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In the 1970s, the Stuttgarter Straßenbahnen tram lines underwent a gauge conversion from  gauge to standard gauge. This was part of an upgrade to the Stuttgart Stadtbahn. In 1981,  and  dual-gauge track was constructed so that new DT-8 Stadtbahn cars and old trams could share the network. In 2008, a further gauge conversion was completed. The Stuttgart Straßenbahn Museum operates  gauge trams on weekends and special occasions.

In Krefeld on Ostwall, Germany, tram lines are dual gauge so that standard  Rheinbahn U76 Stadtbahn cars and  gauge trams may share the lines. At the north end of the route, at the junction with Rheinstraße, the trams reverse. There, the standard gauge line ends, while the metre gauge lines continue. At the Hauptbahnhof, on Oppumer Straße, dual gauge track continues. At the ends of Oppumer Straße, the two tracks diverge.

In Mülheim there is a similar situation. The Duisburg tram line 901 meets the local line 102. The tram system in Duisburg uses  gauge track while the tram route from Witten to Mülheim uses  gauge tracks. Two lines share a tunnel section between the Mülheim (Ruhr) Hauptbahnhof and Schloss Broich then diverge at street level.

The tram network between Werne to Bad Honnef is large with various operators and gauges. The trams in Wuppertal used  gauge track on eastwest lines and  gauge track on northsouth lines. Trams in Duisburg used  gauge track on lines south of the Ruhr and  gauge tracks on lines north of the Ruhr. The north lines closed in the 1960s and 1970s. Duisburg's three routes were converted to  gauge track.