| Boulogne-sur-Mer to Sprimont | 178.32 mi (286.97 km) |
| Boulogne-sur-Mer to Stabroek | 126.71 mi (203.93 km) |
| Boulogne-sur-Mer to Staden | 63.44 mi (102.09 km) |
| Boulogne-sur-Mer to Steenokkerzeel | 126.99 mi (204.37 km) |
| Boulogne-sur-Mer to Stekene | 110.21 mi (177.37 km) |
| Boulogne-sur-Mer to Strombeek-Bever | 120.07 mi (193.23 km) |
| Boulogne-sur-Mer to Temse | 115.78 mi (186.33 km) |
| Boulogne-sur-Mer to Ternat | 112.59 mi (181.19 km) |
| Boulogne-sur-Mer to Tervuren | 126.22 mi (203.13 km) |
| Boulogne-sur-Mer to Tessenderlo | 153.26 mi (246.65 km) |
| Boulogne-sur-Mer to Theux | 184.47 mi (296.87 km) |
| Boulogne-sur-Mer to Thuin | 120.31 mi (193.61 km) |
| Boulogne-sur-Mer to Tielt | 76.96 mi (123.85 km) |
| Boulogne-sur-Mer to Tienen | 145.11 mi (233.53 km) |
| Boulogne-sur-Mer to Tongeren | 168.25 mi (270.77 km) |
