| Grand Island to Opwijk | 4,565.61 mi (7,347.64 km) |
| Grand Island to Ostend | 4,510.65 mi (7,259.19 km) |
| Grand Island to Oud-Heverlee | 4,588.03 mi (7,383.73 km) |
| Grand Island to Oud-Turnhout | 4,579.18 mi (7,369.47 km) |
| Grand Island to Oudenaarde | 4,549.81 mi (7,322.21 km) |
| Grand Island to Oudenburg | 4,515.19 mi (7,266.50 km) |
| Grand Island to Oupeye | 4,627.35 mi (7,447.00 km) |
| Grand Island to Overijse | 4,585.41 mi (7,379.50 km) |
| Grand Island to Overpelt | 4,598.33 mi (7,400.29 km) |
| Grand Island to Paal | 4,597.21 mi (7,398.50 km) |
| Grand Island to Peer | 4,603.08 mi (7,407.95 km) |
| Grand Island to Pepinster | 4,639.33 mi (7,466.27 km) |
| Grand Island to Peruwelz | 4,562.73 mi (7,343.01 km) |
| Grand Island to Perwez | 4,601.86 mi (7,405.98 km) |
| Grand Island to Philippeville | 4,610.02 mi (7,419.12 km) |
