Located in the eastern part of Switzerland, St. Gallen is 90 km (56 miles) from Zurich and 204 km (126.7 miles) from Switzerland's capital Berne. Munich is just 264 km (164 miles) away.
The train ride from Zurich takes 1 hour, from Berne 2 hours, Munich is 3 hours away and Vienna can be reached in 9.5 hours.
St. Gallen Tourism: Map of St. Gallen