| Rignano Flaminio to Oberkirch | 486.73 mi (783.31 km) |
| Rignano Flaminio to Obernburg am Main | 551.54 mi (887.61 km) |
| Rignano Flaminio to Obernkirchen | 713.01 mi (1,147.48 km) |
| Rignano Flaminio to Oberschleissheim | 420.38 mi (676.53 km) |
| Rignano Flaminio to Oberstdorf | 375.78 mi (604.76 km) |
| Rignano Flaminio to Obertraubling | 467.72 mi (752.72 km) |
| Rignano Flaminio to Obertshausen | 570.76 mi (918.55 km) |
| Rignano Flaminio to Oberursel | 583.46 mi (938.99 km) |
| Rignano Flaminio to Ochsenfurt | 527.61 mi (849.10 km) |
| Rignano Flaminio to Ochsenhausen | 424.06 mi (682.46 km) |
| Rignano Flaminio to Ochtrup | 734.12 mi (1,181.45 km) |
| Rignano Flaminio to Odenthal | 660.89 mi (1,063.60 km) |
| Rignano Flaminio to Oelde | 695.87 mi (1,119.90 km) |
| Rignano Flaminio to Oelsnitz | 567.92 mi (913.98 km) |
| Rignano Flaminio to Oer-Erkenschwick | 697.10 mi (1,121.88 km) |
