| Calasparra to Opwijk | 925.61 mi (1,489.62 km) |
| Calasparra to Ostend | 925.59 mi (1,489.60 km) |
| Calasparra to Oud-Heverlee | 924.64 mi (1,488.06 km) |
| Calasparra to Oud-Turnhout | 960.76 mi (1,546.19 km) |
| Calasparra to Oudenaarde | 909.54 mi (1,463.76 km) |
| Calasparra to Oudenburg | 923.73 mi (1,486.60 km) |
| Calasparra to Oupeye | 933.94 mi (1,503.03 km) |
| Calasparra to Overijse | 919.26 mi (1,479.41 km) |
| Calasparra to Overpelt | 961.76 mi (1,547.80 km) |
| Calasparra to Paal | 946.28 mi (1,522.89 km) |
| Calasparra to Peer | 957.11 mi (1,540.32 km) |
| Calasparra to Pepinster | 928.45 mi (1,494.19 km) |
| Calasparra to Peruwelz | 887.50 mi (1,428.29 km) |
| Calasparra to Perwez | 913.77 mi (1,470.57 km) |
| Calasparra to Philippeville | 882.24 mi (1,419.82 km) |
