| Porto Recanati to Oegstgeest | 738.86 mi (1,189.08 km) |
| Porto Recanati to Oirschot | 679.77 mi (1,093.98 km) |
| Porto Recanati to Oisterwijk | 686.95 mi (1,105.53 km) |
| Porto Recanati to Oldebroek | 718.34 mi (1,156.06 km) |
| Porto Recanati to Oldenzaal | 687.88 mi (1,107.03 km) |
| Porto Recanati to Ommen | 710.77 mi (1,143.87 km) |
| Porto Recanati to Oosterend | 747.16 mi (1,202.44 km) |
| Porto Recanati to Oosterhout | 699.38 mi (1,125.55 km) |
| Porto Recanati to Oosterwolde | 741.63 mi (1,193.54 km) |
| Porto Recanati to Oostzaan | 741.80 mi (1,193.81 km) |
| Porto Recanati to Opmeer | 755.06 mi (1,215.15 km) |
| Porto Recanati to Oss | 688.78 mi (1,108.49 km) |
| Porto Recanati to Oud-Beijerland | 721.10 mi (1,160.50 km) |
| Porto Recanati to Oudenbosch | 705.69 mi (1,135.70 km) |
| Porto Recanati to Oudewater | 719.30 mi (1,157.60 km) |
