| Fall River to Oerlinghausen | 3,642.12 mi (5,861.43 km) |
| Fall River to Oestrich-Winkel | 3,668.69 mi (5,904.19 km) |
| Fall River to Offenburg | 3,709.14 mi (5,969.28 km) |
| Fall River to Oftersheim | 3,710.23 mi (5,971.03 km) |
| Fall River to Ohrdruf | 3,755.22 mi (6,043.45 km) |
| Fall River to Ohringen | 3,752.64 mi (6,039.29 km) |
| Fall River to Olbernhau | 3,862.70 mi (6,216.41 km) |
| Fall River to Olching | 3,857.27 mi (6,207.68 km) |
| Fall River to Oldenburg | 3,593.99 mi (5,783.97 km) |
| Fall River to Oldenburg in Holstein | 3,665.46 mi (5,898.99 km) |
| Fall River to Olfen | 3,597.98 mi (5,790.39 km) |
| Fall River to Olpe | 3,634.33 mi (5,848.90 km) |
| Fall River to Olsberg | 3,651.35 mi (5,876.27 km) |
| Fall River to Oranienburg | 3,796.79 mi (6,110.34 km) |
| Fall River to Ortenberg | 3,701.54 mi (5,957.05 km) |
