| Opatija to Civita Castellana | 230.02 mi (370.18 km) |
| Opatija to Civitanova Marche | 143.25 mi (230.54 km) |
| Opatija to Civitavecchia | 255.88 mi (411.81 km) |
| Opatija to Civitella in Val di Chiana | 183.86 mi (295.90 km) |
| Opatija to Clusone | 213.63 mi (343.81 km) |
| Opatija to Coccaglio | 210.06 mi (338.06 km) |
| Opatija to Codigoro | 111.97 mi (180.20 km) |
| Opatija to Codogno | 223.82 mi (360.20 km) |
| Opatija to Codroipo | 77.20 mi (124.24 km) |
| Opatija to Cogoleto | 284.41 mi (457.71 km) |
| Opatija to Colle di Val d'Elsa | 205.66 mi (330.98 km) |
| Opatija to Colle Salvetti | 223.03 mi (358.94 km) |
| Opatija to Collecchio | 203.36 mi (327.27 km) |
| Opatija to Colleferro | 256.90 mi (413.44 km) |
| Opatija to Collegno | 327.89 mi (527.68 km) |
