| Boulogne-sur-Mer to Twist | 266.30 mi (428.57 km) |
| Boulogne-sur-Mer to Twistringen | 333.03 mi (535.96 km) |
| Boulogne-sur-Mer to Ubach-Palenberg | 197.04 mi (317.11 km) |
| Boulogne-sur-Mer to Uberherrn | 247.80 mi (398.79 km) |
| Boulogne-sur-Mer to Uberlingen | 396.95 mi (638.83 km) |
| Boulogne-sur-Mer to Ubstadt-Weiher | 329.67 mi (530.55 km) |
| Boulogne-sur-Mer to Ueckermunde | 564.73 mi (908.85 km) |
| Boulogne-sur-Mer to Uelzen | 411.83 mi (662.78 km) |
| Boulogne-sur-Mer to Uetersen | 397.34 mi (639.46 km) |
| Boulogne-sur-Mer to Uetze | 387.48 mi (623.58 km) |
| Boulogne-sur-Mer to Uhingen | 382.50 mi (615.57 km) |
| Boulogne-sur-Mer to Ulm | 407.73 mi (656.18 km) |
| Boulogne-sur-Mer to Unna | 269.14 mi (433.15 km) |
| Boulogne-sur-Mer to Unterfohring | 483.15 mi (777.55 km) |
| Boulogne-sur-Mer to Unterhaching | 485.11 mi (780.71 km) |
