| Romilly-sur-Seine to Nottingham | 373.29 mi (600.75 km) |
| Romilly-sur-Seine to Nuneaton | 358.61 mi (577.12 km) |
| Romilly-sur-Seine to Oadby | 352.01 mi (566.51 km) |
| Romilly-sur-Seine to Oakengates | 395.66 mi (636.75 km) |
| Romilly-sur-Seine to Oakham | 347.23 mi (558.82 km) |
| Romilly-sur-Seine to Oldbury | 373.45 mi (601.01 km) |
| Romilly-sur-Seine to Oldham | 430.03 mi (692.07 km) |
| Romilly-sur-Seine to Ollerton | 384.01 mi (618.00 km) |
| Romilly-sur-Seine to Olton | 363.94 mi (585.71 km) |
| Romilly-sur-Seine to Omagh | 631.28 mi (1,015.95 km) |
| Romilly-sur-Seine to Ormesby | 466.94 mi (751.47 km) |
| Romilly-sur-Seine to Ormskirk | 451.64 mi (726.84 km) |
| Romilly-sur-Seine to Orpington | 254.93 mi (410.28 km) |
| Romilly-sur-Seine to Ossett | 424.39 mi (682.99 km) |
| Romilly-sur-Seine to Oswaldtwistle | 447.81 mi (720.69 km) |
