| Crowborough to Orbetello | 791.10 mi (1,273.15 km) |
| Crowborough to Oria | 1,109.09 mi (1,784.91 km) |
| Crowborough to Oristano | 870.90 mi (1,401.57 km) |
| Crowborough to Orta Nova | 998.81 mi (1,607.44 km) |
| Crowborough to Orte | 827.34 mi (1,331.48 km) |
| Crowborough to Ortona | 901.28 mi (1,450.47 km) |
| Crowborough to Orvieto | 804.67 mi (1,294.99 km) |
| Crowborough to Orzinuovi | 595.16 mi (957.82 km) |
| Crowborough to Osimo | 812.82 mi (1,308.11 km) |
| Crowborough to Ospitaletto | 592.58 mi (953.67 km) |
| Crowborough to Ostuni | 1,095.56 mi (1,763.13 km) |
| Crowborough to Ottaviano | 981.88 mi (1,580.19 km) |
| Crowborough to Ovada | 592.23 mi (953.10 km) |
| Crowborough to Ozieri | 838.35 mi (1,349.20 km) |
| Crowborough to Paceco | 1,087.12 mi (1,749.55 km) |
