| Caltanissetta to Oerlinghausen | 1,033.97 mi (1,664.01 km) |
| Caltanissetta to Oestrich-Winkel | 915.01 mi (1,472.56 km) |
| Caltanissetta to Offenburg | 818.57 mi (1,317.36 km) |
| Caltanissetta to Oftersheim | 865.05 mi (1,392.16 km) |
| Caltanissetta to Ohrdruf | 935.96 mi (1,506.28 km) |
| Caltanissetta to Ohringen | 840.51 mi (1,352.66 km) |
| Caltanissetta to Olbernhau | 911.11 mi (1,466.29 km) |
| Caltanissetta to Olching | 752.79 mi (1,211.50 km) |
| Caltanissetta to Oldenburg | 1,117.33 mi (1,798.17 km) |
| Caltanissetta to Oldenburg in Holstein | 1,171.15 mi (1,884.79 km) |
| Caltanissetta to Olfen | 1,035.33 mi (1,666.20 km) |
| Caltanissetta to Olpe | 983.22 mi (1,582.35 km) |
| Caltanissetta to Olsberg | 995.67 mi (1,602.37 km) |
| Caltanissetta to Oranienburg | 1,055.40 mi (1,698.50 km) |
| Caltanissetta to Ortenberg | 922.64 mi (1,484.85 km) |
