Here are a few suggestions for your next trip from Calw

In 2 hours, you can reach Stuttgart, Strasbourg.

In 3 hours, you can reach Basel, Frankfurt am Main.

In 4 hours, you can reach Luxembourg, Paris, Zürich, Munich, Dudelange, Köln, Schifflange, Bettembourg, Winterthur, Düsseldorf...

In 5 hours, you can reach Schaan, Vaduz, Esch-sur-Alzette, Triesen, Eschen, Bern, Liège, Pétange, Mauren, Luzern.