| Castelginest to Nottingham | 650.58 mi (1,047.01 km) |
| Castelginest to Nuneaton | 624.42 mi (1,004.91 km) |
| Castelginest to Oadby | 625.96 mi (1,007.38 km) |
| Castelginest to Oakengates | 646.90 mi (1,041.09 km) |
| Castelginest to Oakham | 628.14 mi (1,010.90 km) |
| Castelginest to Oldbury | 629.07 mi (1,012.39 km) |
| Castelginest to Oldham | 699.44 mi (1,125.64 km) |
| Castelginest to Ollerton | 666.27 mi (1,072.26 km) |
| Castelginest to Olton | 622.22 mi (1,001.37 km) |
| Castelginest to Omagh | 848.37 mi (1,365.32 km) |
| Castelginest to Ormesby | 759.17 mi (1,221.77 km) |
| Castelginest to Ormskirk | 709.76 mi (1,142.25 km) |
| Castelginest to Orpington | 534.28 mi (859.85 km) |
| Castelginest to Ossett | 703.38 mi (1,131.98 km) |
| Castelginest to Oswaldtwistle | 715.64 mi (1,151.71 km) |
