| Slovenj Gradec to Opwijk | 583.37 mi (938.85 km) |
| Slovenj Gradec to Ostend | 640.41 mi (1,030.64 km) |
| Slovenj Gradec to Oud-Heverlee | 560.44 mi (901.95 km) |
| Slovenj Gradec to Oud-Turnhout | 565.31 mi (909.77 km) |
| Slovenj Gradec to Oudenaarde | 602.52 mi (969.66 km) |
| Slovenj Gradec to Oudenburg | 635.99 mi (1,023.52 km) |
| Slovenj Gradec to Oupeye | 519.00 mi (835.24 km) |
| Slovenj Gradec to Overijse | 563.98 mi (907.64 km) |
| Slovenj Gradec to Overpelt | 545.79 mi (878.36 km) |
| Slovenj Gradec to Paal | 548.29 mi (882.39 km) |
| Slovenj Gradec to Peer | 541.32 mi (871.16 km) |
| Slovenj Gradec to Pepinster | 507.50 mi (816.75 km) |
| Slovenj Gradec to Peruwelz | 593.68 mi (955.44 km) |
| Slovenj Gradec to Perwez | 547.98 mi (881.89 km) |
| Slovenj Gradec to Philippeville | 545.87 mi (878.50 km) |
