| Rhondda to Borsbeek | 341.55 mi (549.68 km) |
| Rhondda to Boussu | 323.82 mi (521.14 km) |
| Rhondda to Braine-l'Alleud | 343.56 mi (552.90 km) |
| Rhondda to Braine-le-Chateau | 339.05 mi (545.65 km) |
| Rhondda to Braine-le-Comte | 334.83 mi (538.86 km) |
| Rhondda to Brasschaat | 340.99 mi (548.77 km) |
| Rhondda to Brecht | 346.72 mi (557.99 km) |
| Rhondda to Bredene | 276.61 mi (445.15 km) |
| Rhondda to Bree | 389.38 mi (626.65 km) |
| Rhondda to Bruges | 287.50 mi (462.68 km) |
| Rhondda to Brussels | 340.17 mi (547.46 km) |
| Rhondda to Buggenhout | 331.60 mi (533.67 km) |
| Rhondda to Chapelle-lez-Herlaimont | 343.66 mi (553.07 km) |
| Rhondda to Charleroi | 351.30 mi (565.37 km) |
| Rhondda to Chatelet | 354.82 mi (571.03 km) |
