| Catral to Oberkirch | 843.22 mi (1,357.02 km) |
| Catral to Obernburg am Main | 944.56 mi (1,520.13 km) |
| Catral to Obernkirchen | 1,085.47 mi (1,746.89 km) |
| Catral to Oberschleissheim | 932.70 mi (1,501.03 km) |
| Catral to Oberstdorf | 849.41 mi (1,366.99 km) |
| Catral to Obertraubling | 986.80 mi (1,588.10 km) |
| Catral to Obertshausen | 949.76 mi (1,528.50 km) |
| Catral to Oberursel | 951.47 mi (1,531.24 km) |
| Catral to Ochsenfurt | 958.69 mi (1,542.86 km) |
| Catral to Ochsenhausen | 871.88 mi (1,403.15 km) |
| Catral to Ochtrup | 1,044.16 mi (1,680.42 km) |
| Catral to Odenthal | 969.78 mi (1,560.72 km) |
| Catral to Oelde | 1,039.32 mi (1,672.63 km) |
| Catral to Oelsnitz | 1,059.21 mi (1,704.64 km) |
| Catral to Oer-Erkenschwick | 1,010.09 mi (1,625.57 km) |
