| Silkeborg to Oria | 1,143.55 mi (1,840.36 km) |
| Silkeborg to Oristano | 1,125.51 mi (1,811.34 km) |
| Silkeborg to Orta Nova | 1,062.83 mi (1,710.46 km) |
| Silkeborg to Orte | 956.51 mi (1,539.36 km) |
| Silkeborg to Ortona | 979.86 mi (1,576.93 km) |
| Silkeborg to Orvieto | 937.25 mi (1,508.35 km) |
| Silkeborg to Orzinuovi | 745.24 mi (1,199.34 km) |
| Silkeborg to Osimo | 894.44 mi (1,439.46 km) |
| Silkeborg to Ospitaletto | 734.67 mi (1,182.34 km) |
| Silkeborg to Ostuni | 1,127.33 mi (1,814.26 km) |
| Silkeborg to Ottaviano | 1,082.46 mi (1,742.05 km) |
| Silkeborg to Ovada | 798.60 mi (1,285.22 km) |
| Silkeborg to Ozieri | 1,078.03 mi (1,734.92 km) |
| Silkeborg to Paceco | 1,265.09 mi (2,035.96 km) |
| Silkeborg to Pachino | 1,369.62 mi (2,204.20 km) |
