| Rhymney to Olivares | 1,000.74 mi (1,610.54 km) |
| Rhymney to Olivenza | 921.85 mi (1,483.57 km) |
| Rhymney to Olot | 714.91 mi (1,150.53 km) |
| Rhymney to Onate | 604.24 mi (972.42 km) |
| Rhymney to Onda | 827.71 mi (1,332.08 km) |
| Rhymney to Onteniente | 903.10 mi (1,453.39 km) |
| Rhymney to Orihuela | 951.50 mi (1,531.29 km) |
| Rhymney to Osuna | 1,007.53 mi (1,621.47 km) |
| Rhymney to Ourense | 685.47 mi (1,103.16 km) |
| Rhymney to Oviedo | 592.38 mi (953.35 km) |
| Rhymney to Paiporta | 863.01 mi (1,388.88 km) |
| Rhymney to Pajara | 1,711.29 mi (2,754.05 km) |
| Rhymney to Palafolls | 752.82 mi (1,211.54 km) |
| Rhymney to Palafrugell | 744.41 mi (1,198.01 km) |
| Rhymney to Palamos | 748.36 mi (1,204.36 km) |
