| San Luis Obispo to Opwijk | 5,603.66 mi (9,018.23 km) |
| San Luis Obispo to Ostend | 5,553.09 mi (8,936.84 km) |
| San Luis Obispo to Oud-Heverlee | 5,624.69 mi (9,052.07 km) |
| San Luis Obispo to Oud-Turnhout | 5,609.22 mi (9,027.16 km) |
| San Luis Obispo to Oudenaarde | 5,592.27 mi (8,999.89 km) |
| San Luis Obispo to Oudenburg | 5,557.62 mi (8,944.13 km) |
| San Luis Obispo to Oupeye | 5,659.66 mi (9,108.34 km) |
| San Luis Obispo to Overijse | 5,623.32 mi (9,049.86 km) |
| San Luis Obispo to Overpelt | 5,626.89 mi (9,055.61 km) |
| San Luis Obispo to Paal | 5,628.95 mi (9,058.92 km) |
| San Luis Obispo to Peer | 5,632.28 mi (9,064.28 km) |
| San Luis Obispo to Pepinster | 5,672.03 mi (9,128.25 km) |
| San Luis Obispo to Peruwelz | 5,608.59 mi (9,026.15 km) |
| San Luis Obispo to Perwez | 5,639.75 mi (9,076.30 km) |
| San Luis Obispo to Philippeville | 5,653.58 mi (9,098.55 km) |
