| Voluntari to Oberkirch | 902.62 mi (1,452.63 km) |
| Voluntari to Obernburg am Main | 879.40 mi (1,415.26 km) |
| Voluntari to Obernkirchen | 946.23 mi (1,522.82 km) |
| Voluntari to Oberschleissheim | 742.54 mi (1,195.00 km) |
| Voluntari to Oberstdorf | 788.96 mi (1,269.71 km) |
| Voluntari to Obertraubling | 731.12 mi (1,176.62 km) |
| Voluntari to Obertshausen | 897.36 mi (1,444.17 km) |
| Voluntari to Oberursel | 911.16 mi (1,466.36 km) |
| Voluntari to Ochsenfurt | 836.06 mi (1,345.51 km) |
| Voluntari to Ochsenhausen | 812.30 mi (1,307.27 km) |
| Voluntari to Ochtrup | 1,017.77 mi (1,637.95 km) |
| Voluntari to Odenthal | 990.53 mi (1,594.10 km) |
| Voluntari to Oelde | 970.01 mi (1,561.08 km) |
| Voluntari to Oelsnitz | 770.68 mi (1,240.29 km) |
| Voluntari to Oer-Erkenschwick | 1,000.14 mi (1,609.57 km) |
