| Middelharnis to Nottingham | 239.35 mi (385.19 km) |
| Middelharnis to Nuneaton | 244.92 mi (394.16 km) |
| Middelharnis to Oadby | 229.84 mi (369.90 km) |
| Middelharnis to Oakengates | 287.63 mi (462.90 km) |
| Middelharnis to Oakham | 217.07 mi (349.34 km) |
| Middelharnis to Oldbury | 267.43 mi (430.39 km) |
| Middelharnis to Oldham | 291.12 mi (468.51 km) |
| Middelharnis to Ollerton | 240.23 mi (386.61 km) |
| Middelharnis to Olton | 258.00 mi (415.21 km) |
| Middelharnis to Omagh | 512.85 mi (825.36 km) |
| Middelharnis to Ormesby | 294.11 mi (473.32 km) |
| Middelharnis to Ormskirk | 321.10 mi (516.77 km) |
| Middelharnis to Orpington | 176.77 mi (284.49 km) |
| Middelharnis to Ossett | 275.03 mi (442.61 km) |
| Middelharnis to Oswaldtwistle | 306.94 mi (493.97 km) |
