| Rhondda to Boppard | 488.40 mi (786.00 km) |
| Rhondda to Borgentreich | 543.09 mi (874.01 km) |
| Rhondda to Borgholzhausen | 500.59 mi (805.62 km) |
| Rhondda to Borken | 440.05 mi (708.19 km) |
| Rhondda to Borna | 686.15 mi (1,104.25 km) |
| Rhondda to Bornheim | 454.82 mi (731.96 km) |
| Rhondda to Bosel | 489.32 mi (787.48 km) |
| Rhondda to Bottrop | 443.74 mi (714.13 km) |
| Rhondda to Bovenden | 571.67 mi (920.02 km) |
| Rhondda to Brackenheim | 576.71 mi (928.13 km) |
| Rhondda to Brake | 514.05 mi (827.29 km) |
| Rhondda to Brakel | 539.37 mi (868.04 km) |
| Rhondda to Bramsche | 487.38 mi (784.37 km) |
| Rhondda to Brand | 419.01 mi (674.34 km) |
| Rhondda to Brand-Erbisdorf | 724.29 mi (1,165.64 km) |
