| Bolsover to Orbetello | 941.62 mi (1,515.39 km) |
| Bolsover to Oria | 1,246.66 mi (2,006.31 km) |
| Bolsover to Oristano | 1,031.10 mi (1,659.40 km) |
| Bolsover to Orta Nova | 1,139.31 mi (1,833.54 km) |
| Bolsover to Orte | 974.27 mi (1,567.93 km) |
| Bolsover to Ortona | 1,042.21 mi (1,677.28 km) |
| Bolsover to Orvieto | 951.61 mi (1,531.46 km) |
| Bolsover to Orzinuovi | 738.69 mi (1,188.81 km) |
| Bolsover to Osimo | 952.20 mi (1,532.42 km) |
| Bolsover to Ospitaletto | 734.68 mi (1,182.36 km) |
| Bolsover to Ostuni | 1,232.48 mi (1,983.49 km) |
| Bolsover to Ottaviano | 1,127.52 mi (1,814.56 km) |
| Bolsover to Ovada | 743.96 mi (1,197.29 km) |
| Bolsover to Ozieri | 997.37 mi (1,605.12 km) |
| Bolsover to Paceco | 1,243.02 mi (2,000.45 km) |
