| Fern Down to Oberkirch | 472.85 mi (760.99 km) |
| Fern Down to Obernburg am Main | 491.17 mi (790.46 km) |
| Fern Down to Obernkirchen | 483.56 mi (778.22 km) |
| Fern Down to Oberschleissheim | 628.26 mi (1,011.09 km) |
| Fern Down to Oberstdorf | 597.95 mi (962.30 km) |
| Fern Down to Obertraubling | 637.99 mi (1,026.75 km) |
| Fern Down to Obertshausen | 474.69 mi (763.94 km) |
| Fern Down to Oberursel | 461.89 mi (743.35 km) |
| Fern Down to Ochsenfurt | 534.35 mi (859.95 km) |
| Fern Down to Ochsenhausen | 564.15 mi (907.91 km) |
| Fern Down to Ochtrup | 402.34 mi (647.50 km) |
| Fern Down to Odenthal | 392.78 mi (632.12 km) |
| Fern Down to Oelde | 439.31 mi (707.00 km) |
| Fern Down to Oelsnitz | 616.39 mi (991.99 km) |
| Fern Down to Oer-Erkenschwick | 399.83 mi (643.47 km) |
