Bar-le-Duc is on the Paris–Strasbourg railway line, with direct TGV and TER services connecting it to Paris Est (around 90 minutes) and to Metz and Nancy to the east. The station is in the lower town, a short walk from the centre.
By car, Bar-le-Duc sits on the A31 autoroute between Luxembourg and Dijon. It is about 260 kilometres from Paris, 55 kilometres from Verdun, and 85 kilometres from Metz.