| Fountain to Oberkirch | 5,142.72 mi (8,276.41 km) |
| Fountain to Obernburg am Main | 5,118.08 mi (8,236.75 km) |
| Fountain to Obernkirchen | 5,005.62 mi (8,055.77 km) |
| Fountain to Oberschleissheim | 5,273.31 mi (8,486.58 km) |
| Fountain to Oberstdorf | 5,270.06 mi (8,481.35 km) |
| Fountain to Obertraubling | 5,258.65 mi (8,462.98 km) |
| Fountain to Obertshausen | 5,097.42 mi (8,203.50 km) |
| Fountain to Oberursel | 5,082.66 mi (8,179.76 km) |
| Fountain to Ochsenfurt | 5,157.45 mi (8,300.11 km) |
| Fountain to Ochsenhausen | 5,227.56 mi (8,412.95 km) |
| Fountain to Ochtrup | 4,946.69 mi (7,960.92 km) |
| Fountain to Odenthal | 4,996.73 mi (8,041.46 km) |
| Fountain to Oelde | 4,994.41 mi (8,037.73 km) |
| Fountain to Oelsnitz | 5,188.97 mi (8,350.84 km) |
| Fountain to Oer-Erkenschwick | 4,973.84 mi (8,004.63 km) |
