| Dorking to Orbetello | 814.66 mi (1,311.07 km) |
| Dorking to Oria | 1,133.38 mi (1,824.00 km) |
| Dorking to Oristano | 892.19 mi (1,435.84 km) |
| Dorking to Orta Nova | 1,023.03 mi (1,646.40 km) |
| Dorking to Orte | 851.23 mi (1,369.92 km) |
| Dorking to Ortona | 925.49 mi (1,489.43 km) |
| Dorking to Orvieto | 828.56 mi (1,333.44 km) |
| Dorking to Orzinuovi | 619.32 mi (996.71 km) |
| Dorking to Osimo | 837.09 mi (1,347.17 km) |
| Dorking to Ospitaletto | 616.80 mi (992.65 km) |
| Dorking to Ostuni | 1,119.86 mi (1,802.25 km) |
| Dorking to Ottaviano | 1,005.83 mi (1,618.73 km) |
| Dorking to Ovada | 615.73 mi (990.91 km) |
| Dorking to Ozieri | 860.18 mi (1,384.33 km) |
| Dorking to Paceco | 1,109.77 mi (1,786.00 km) |
