| Calvizzano to Oerlinghausen | 807.91 mi (1,300.21 km) |
| Calvizzano to Oestrich-Winkel | 695.94 mi (1,120.01 km) |
| Calvizzano to Offenburg | 605.82 mi (974.97 km) |
| Calvizzano to Oftersheim | 645.30 mi (1,038.52 km) |
| Calvizzano to Ohrdruf | 705.56 mi (1,135.49 km) |
| Calvizzano to Ohringen | 617.05 mi (993.05 km) |
| Calvizzano to Olbernhau | 676.04 mi (1,087.99 km) |
| Calvizzano to Olching | 523.66 mi (842.74 km) |
| Calvizzano to Oldenburg | 890.70 mi (1,433.44 km) |
| Calvizzano to Oldenburg in Holstein | 938.26 mi (1,509.99 km) |
| Calvizzano to Olfen | 813.92 mi (1,309.89 km) |
| Calvizzano to Olpe | 761.94 mi (1,226.23 km) |
| Calvizzano to Olsberg | 771.31 mi (1,241.30 km) |
| Calvizzano to Oranienburg | 820.26 mi (1,320.08 km) |
| Calvizzano to Ortenberg | 698.31 mi (1,123.82 km) |
