| Brea to Oberkirch | 5,839.16 mi (9,397.22 km) |
| Brea to Obernburg am Main | 5,804.22 mi (9,340.99 km) |
| Brea to Obernkirchen | 5,678.72 mi (9,139.02 km) |
| Brea to Oberschleissheim | 5,959.15 mi (9,590.33 km) |
| Brea to Oberstdorf | 5,964.66 mi (9,599.19 km) |
| Brea to Obertraubling | 5,938.67 mi (9,557.37 km) |
| Brea to Obertshausen | 5,783.42 mi (9,307.51 km) |
| Brea to Oberursel | 5,768.80 mi (9,283.99 km) |
| Brea to Ochsenfurt | 5,841.41 mi (9,400.83 km) |
| Brea to Ochsenhausen | 5,920.01 mi (9,527.34 km) |
| Brea to Ochtrup | 5,626.51 mi (9,054.99 km) |
| Brea to Odenthal | 5,683.24 mi (9,146.29 km) |
| Brea to Oelde | 5,673.16 mi (9,130.06 km) |
| Brea to Oelsnitz | 5,861.42 mi (9,433.05 km) |
| Brea to Oer-Erkenschwick | 5,656.59 mi (9,103.40 km) |
