| Rhondda to Beocin | 1,144.43 mi (1,841.78 km) |
| Rhondda to Blace | 1,280.97 mi (2,061.52 km) |
| Rhondda to Bogatic | 1,147.35 mi (1,846.48 km) |
| Rhondda to Bojnik | 1,309.84 mi (2,107.99 km) |
| Rhondda to Boljevac | 1,287.63 mi (2,072.23 km) |
| Rhondda to Bor | 1,282.37 mi (2,063.77 km) |
| Rhondda to Borca | 1,186.18 mi (1,908.97 km) |
| Rhondda to Bosilegrad | 1,361.69 mi (2,191.43 km) |
| Rhondda to Brus | 1,266.96 mi (2,038.97 km) |
| Rhondda to Bujanovac | 1,334.25 mi (2,147.27 km) |
| Rhondda to Cacak | 1,218.86 mi (1,961.56 km) |
| Rhondda to Cajetina | 1,198.48 mi (1,928.76 km) |
| Rhondda to Cicevac | 1,271.00 mi (2,045.48 km) |
| Rhondda to Coka | 1,136.62 mi (1,829.22 km) |
| Rhondda to Crna Trava | 1,341.94 mi (2,159.64 km) |
