| Cave to Nottingham | 1,009.32 mi (1,624.34 km) |
| Cave to Nuneaton | 998.75 mi (1,607.34 km) |
| Cave to Oadby | 990.19 mi (1,593.55 km) |
| Cave to Oakengates | 1,037.63 mi (1,669.90 km) |
| Cave to Oakham | 983.22 mi (1,582.35 km) |
| Cave to Oldbury | 1,015.22 mi (1,633.83 km) |
| Cave to Oldham | 1,066.43 mi (1,716.26 km) |
| Cave to Ollerton | 1,017.42 mi (1,637.38 km) |
| Cave to Olton | 1,005.49 mi (1,618.17 km) |
| Cave to Omagh | 1,274.39 mi (2,050.93 km) |
| Cave to Ormesby | 1,089.63 mi (1,753.58 km) |
| Cave to Ormskirk | 1,090.76 mi (1,755.41 km) |
| Cave to Orpington | 895.99 mi (1,441.96 km) |
| Cave to Ossett | 1,057.17 mi (1,701.35 km) |
| Cave to Oswaldtwistle | 1,084.07 mi (1,744.65 km) |
