| Haywards Heath to Oberkirch | 402.75 mi (648.17 km) |
| Haywards Heath to Obernburg am Main | 414.31 mi (666.77 km) |
| Haywards Heath to Obernkirchen | 404.40 mi (650.82 km) |
| Haywards Heath to Oberschleissheim | 554.94 mi (893.08 km) |
| Haywards Heath to Oberstdorf | 529.55 mi (852.22 km) |
| Haywards Heath to Obertraubling | 562.05 mi (904.54 km) |
| Haywards Heath to Obertshausen | 397.28 mi (639.36 km) |
| Haywards Heath to Oberursel | 384.18 mi (618.28 km) |
| Haywards Heath to Ochsenfurt | 457.62 mi (736.47 km) |
| Haywards Heath to Ochsenhausen | 493.38 mi (794.01 km) |
| Haywards Heath to Ochtrup | 323.41 mi (520.48 km) |
| Haywards Heath to Odenthal | 313.46 mi (504.46 km) |
| Haywards Heath to Oelde | 359.76 mi (578.98 km) |
| Haywards Heath to Oelsnitz | 537.52 mi (865.05 km) |
| Haywards Heath to Oer-Erkenschwick | 320.20 mi (515.32 km) |
