| Pilar de la Horadada to Oberkirch | 860.41 mi (1,384.69 km) |
| Pilar de la Horadada to Obernburg am Main | 961.90 mi (1,548.03 km) |
| Pilar de la Horadada to Obernkirchen | 1,103.67 mi (1,776.18 km) |
| Pilar de la Horadada to Oberschleissheim | 948.07 mi (1,525.78 km) |
| Pilar de la Horadada to Oberstdorf | 864.80 mi (1,391.76 km) |
| Pilar de la Horadada to Obertraubling | 1,002.39 mi (1,613.20 km) |
| Pilar de la Horadada to Obertshausen | 967.32 mi (1,556.75 km) |
| Pilar de la Horadada to Oberursel | 969.17 mi (1,559.73 km) |
| Pilar de la Horadada to Ochsenfurt | 975.55 mi (1,570.00 km) |
| Pilar de la Horadada to Ochsenhausen | 887.89 mi (1,428.93 km) |
| Pilar de la Horadada to Ochtrup | 1,062.92 mi (1,710.60 km) |
| Pilar de la Horadada to Odenthal | 988.28 mi (1,590.49 km) |
| Pilar de la Horadada to Oelde | 1,057.70 mi (1,702.21 km) |
| Pilar de la Horadada to Oelsnitz | 1,075.64 mi (1,731.08 km) |
| Pilar de la Horadada to Oer-Erkenschwick | 1,028.69 mi (1,655.52 km) |
