| Storm Lake to Opwijk | 4,367.41 mi (7,028.66 km) |
| Storm Lake to Ostend | 4,312.27 mi (6,939.92 km) |
| Storm Lake to Oud-Heverlee | 4,389.88 mi (7,064.83 km) |
| Storm Lake to Oud-Turnhout | 4,381.40 mi (7,051.19 km) |
| Storm Lake to Oudenaarde | 4,351.38 mi (7,002.88 km) |
| Storm Lake to Oudenburg | 4,316.81 mi (6,947.23 km) |
| Storm Lake to Oupeye | 4,429.39 mi (7,128.42 km) |
| Storm Lake to Overijse | 4,387.19 mi (7,060.51 km) |
| Storm Lake to Overpelt | 4,400.62 mi (7,082.11 km) |
| Storm Lake to Paal | 4,399.33 mi (7,080.03 km) |
| Storm Lake to Peer | 4,405.33 mi (7,089.70 km) |
| Storm Lake to Pepinster | 4,441.34 mi (7,147.64 km) |
| Storm Lake to Peruwelz | 4,364.12 mi (7,023.37 km) |
| Storm Lake to Perwez | 4,403.63 mi (7,086.96 km) |
| Storm Lake to Philippeville | 4,411.48 mi (7,099.60 km) |
