| Crystal Lake to Opwijk | 4,138.17 mi (6,659.74 km) |
| Crystal Lake to Ostend | 4,081.89 mi (6,569.17 km) |
| Crystal Lake to Oud-Heverlee | 4,160.95 mi (6,696.40 km) |
| Crystal Lake to Oud-Turnhout | 4,155.18 mi (6,687.12 km) |
| Crystal Lake to Oudenaarde | 4,120.57 mi (6,631.42 km) |
| Crystal Lake to Oudenburg | 4,086.39 mi (6,576.41 km) |
| Crystal Lake to Oupeye | 4,201.73 mi (6,762.04 km) |
| Crystal Lake to Overijse | 4,157.79 mi (6,691.32 km) |
| Crystal Lake to Overpelt | 4,174.75 mi (6,718.62 km) |
| Crystal Lake to Paal | 4,172.23 mi (6,714.56 km) |
| Crystal Lake to Peer | 4,179.17 mi (6,725.73 km) |
| Crystal Lake to Pepinster | 4,213.39 mi (6,780.80 km) |
| Crystal Lake to Peruwelz | 4,131.81 mi (6,649.51 km) |
| Crystal Lake to Perwez | 4,174.06 mi (6,717.50 km) |
| Crystal Lake to Philippeville | 4,179.58 mi (6,726.39 km) |
