| Palo del Colle to Oerlinghausen | 844.28 mi (1,358.74 km) |
| Palo del Colle to Oestrich-Winkel | 747.06 mi (1,202.28 km) |
| Palo del Colle to Offenburg | 668.13 mi (1,075.25 km) |
| Palo del Colle to Oftersheim | 696.64 mi (1,121.14 km) |
| Palo del Colle to Ohrdruf | 733.33 mi (1,180.17 km) |
| Palo del Colle to Ohringen | 662.85 mi (1,066.76 km) |
| Palo del Colle to Olbernhau | 683.72 mi (1,100.34 km) |
| Palo del Colle to Olching | 560.13 mi (901.45 km) |
| Palo del Colle to Oldenburg | 924.53 mi (1,487.88 km) |
| Palo del Colle to Oldenburg in Holstein | 953.83 mi (1,535.05 km) |
| Palo del Colle to Olfen | 858.88 mi (1,382.23 km) |
| Palo del Colle to Olpe | 808.08 mi (1,300.47 km) |
| Palo del Colle to Olsberg | 811.76 mi (1,306.40 km) |
| Palo del Colle to Oranienburg | 824.80 mi (1,327.39 km) |
| Palo del Colle to Ortenberg | 740.36 mi (1,191.50 km) |
