| Marshfield to Oerlinghausen | 4,207.82 mi (6,771.84 km) |
| Marshfield to Oestrich-Winkel | 4,265.77 mi (6,865.10 km) |
| Marshfield to Offenburg | 4,327.49 mi (6,964.43 km) |
| Marshfield to Oftersheim | 4,312.90 mi (6,940.94 km) |
| Marshfield to Ohrdruf | 4,326.34 mi (6,962.57 km) |
| Marshfield to Ohringen | 4,352.71 mi (7,005.01 km) |
| Marshfield to Olbernhau | 4,421.80 mi (7,116.20 km) |
| Marshfield to Olching | 4,460.56 mi (7,178.58 km) |
| Marshfield to Oldenburg | 4,144.58 mi (6,670.05 km) |
| Marshfield to Oldenburg in Holstein | 4,185.50 mi (6,735.91 km) |
| Marshfield to Olfen | 4,173.76 mi (6,717.02 km) |
| Marshfield to Olpe | 4,217.95 mi (6,788.13 km) |
| Marshfield to Olsberg | 4,226.88 mi (6,802.50 km) |
| Marshfield to Oranienburg | 4,327.31 mi (6,964.14 km) |
| Marshfield to Ortenberg | 4,288.14 mi (6,901.10 km) |
