| Rijswijk to Orbetello | 737.28 mi (1,186.54 km) |
| Rijswijk to Oria | 1,016.48 mi (1,635.87 km) |
| Rijswijk to Oristano | 862.99 mi (1,388.85 km) |
| Rijswijk to Orta Nova | 913.69 mi (1,470.45 km) |
| Rijswijk to Orte | 761.40 mi (1,225.35 km) |
| Rijswijk to Ortona | 818.26 mi (1,316.86 km) |
| Rijswijk to Orvieto | 739.17 mi (1,189.57 km) |
| Rijswijk to Orzinuovi | 525.05 mi (844.99 km) |
| Rijswijk to Osimo | 727.28 mi (1,170.44 km) |
| Rijswijk to Ospitaletto | 518.67 mi (834.73 km) |
| Rijswijk to Ostuni | 1,001.66 mi (1,612.01 km) |
| Rijswijk to Ottaviano | 910.06 mi (1,464.59 km) |
| Rijswijk to Ovada | 548.54 mi (882.78 km) |
| Rijswijk to Ozieri | 822.22 mi (1,323.24 km) |
| Rijswijk to Paceco | 1,049.68 mi (1,689.30 km) |
