| Crystal Lake to Oberkirch | 4,375.63 mi (7,041.90 km) |
| Crystal Lake to Obernburg am Main | 4,363.69 mi (7,022.68 km) |
| Crystal Lake to Obernkirchen | 4,268.82 mi (6,870.01 km) |
| Crystal Lake to Oberschleissheim | 4,516.95 mi (7,269.34 km) |
| Crystal Lake to Oberstdorf | 4,503.40 mi (7,247.52 km) |
| Crystal Lake to Obertraubling | 4,509.40 mi (7,257.18 km) |
| Crystal Lake to Obertshausen | 4,343.53 mi (6,990.24 km) |
| Crystal Lake to Oberursel | 4,328.83 mi (6,966.58 km) |
| Crystal Lake to Ochsenfurt | 4,405.07 mi (7,089.28 km) |
| Crystal Lake to Ochsenhausen | 4,464.03 mi (7,184.17 km) |
| Crystal Lake to Ochtrup | 4,202.71 mi (6,763.61 km) |
| Crystal Lake to Odenthal | 4,243.79 mi (6,829.72 km) |
| Crystal Lake to Oelde | 4,250.95 mi (6,841.24 km) |
| Crystal Lake to Oelsnitz | 4,449.83 mi (7,161.32 km) |
| Crystal Lake to Oer-Erkenschwick | 4,225.85 mi (6,800.84 km) |
