| Rocca Priora to Nottingham | 1,006.23 mi (1,619.38 km) |
| Rocca Priora to Nuneaton | 995.41 mi (1,601.96 km) |
| Rocca Priora to Oadby | 986.97 mi (1,588.38 km) |
| Rocca Priora to Oakengates | 1,034.13 mi (1,664.28 km) |
| Rocca Priora to Oakham | 980.12 mi (1,577.36 km) |
| Rocca Priora to Oldbury | 1,011.74 mi (1,628.24 km) |
| Rocca Priora to Oldham | 1,063.36 mi (1,711.32 km) |
| Rocca Priora to Ollerton | 1,014.47 mi (1,632.63 km) |
| Rocca Priora to Olton | 1,002.03 mi (1,612.61 km) |
| Rocca Priora to Omagh | 1,270.76 mi (2,045.09 km) |
| Rocca Priora to Ormesby | 1,087.15 mi (1,749.61 km) |
| Rocca Priora to Ormskirk | 1,087.53 mi (1,750.21 km) |
| Rocca Priora to Orpington | 892.53 mi (1,436.40 km) |
| Rocca Priora to Ossett | 1,054.27 mi (1,696.69 km) |
| Rocca Priora to Oswaldtwistle | 1,081.02 mi (1,739.73 km) |
