| Clemmons to Opwijk | 4,122.11 mi (6,633.90 km) |
| Clemmons to Ostend | 4,064.48 mi (6,541.15 km) |
| Clemmons to Oud-Heverlee | 4,145.09 mi (6,670.87 km) |
| Clemmons to Oud-Turnhout | 4,145.65 mi (6,671.78 km) |
| Clemmons to Oudenaarde | 4,101.27 mi (6,600.35 km) |
| Clemmons to Oudenburg | 4,068.77 mi (6,548.05 km) |
| Clemmons to Oupeye | 4,187.90 mi (6,739.77 km) |
| Clemmons to Overijse | 4,140.93 mi (6,664.18 km) |
| Clemmons to Overpelt | 4,165.61 mi (6,703.90 km) |
| Clemmons to Paal | 4,160.33 mi (6,695.41 km) |
| Clemmons to Peer | 4,169.25 mi (6,709.76 km) |
| Clemmons to Pepinster | 4,198.65 mi (6,757.07 km) |
| Clemmons to Peruwelz | 4,108.80 mi (6,612.47 km) |
| Clemmons to Perwez | 4,156.44 mi (6,689.14 km) |
| Clemmons to Philippeville | 4,156.46 mi (6,689.17 km) |
