| Marion to Oerlinghausen | 4,387.98 mi (7,061.76 km) |
| Marion to Oestrich-Winkel | 4,443.18 mi (7,150.61 km) |
| Marion to Offenburg | 4,502.91 mi (7,246.73 km) |
| Marion to Oftersheim | 4,489.87 mi (7,225.75 km) |
| Marion to Ohrdruf | 4,506.29 mi (7,252.17 km) |
| Marion to Ohringen | 4,530.03 mi (7,290.39 km) |
| Marion to Olbernhau | 4,602.99 mi (7,407.79 km) |
| Marion to Olching | 4,637.82 mi (7,463.85 km) |
| Marion to Oldenburg | 4,325.86 mi (6,961.80 km) |
| Marion to Oldenburg in Holstein | 4,369.23 mi (7,031.60 km) |
| Marion to Olfen | 4,352.95 mi (7,005.39 km) |
| Marion to Olpe | 4,396.52 mi (7,075.52 km) |
| Marion to Olsberg | 4,406.21 mi (7,091.10 km) |
| Marion to Oranienburg | 4,510.57 mi (7,259.06 km) |
| Marion to Ortenberg | 4,466.60 mi (7,188.30 km) |
