| Harenkarspel to Nottingham | 247.47 mi (398.26 km) |
| Harenkarspel to Nuneaton | 261.96 mi (421.58 km) |
| Harenkarspel to Oadby | 245.11 mi (394.46 km) |
| Harenkarspel to Oakengates | 302.15 mi (486.26 km) |
| Harenkarspel to Oakham | 230.42 mi (370.83 km) |
| Harenkarspel to Oldbury | 285.01 mi (458.67 km) |
| Harenkarspel to Oldham | 290.78 mi (467.96 km) |
| Harenkarspel to Ollerton | 243.03 mi (391.12 km) |
| Harenkarspel to Olton | 276.73 mi (445.36 km) |
| Harenkarspel to Omagh | 509.44 mi (819.86 km) |
| Harenkarspel to Ormesby | 274.04 mi (441.03 km) |
| Harenkarspel to Ormskirk | 322.30 mi (518.69 km) |
| Harenkarspel to Orpington | 219.57 mi (353.36 km) |
| Harenkarspel to Ossett | 270.70 mi (435.64 km) |
| Harenkarspel to Oswaldtwistle | 304.17 mi (489.51 km) |
