| Opoczno to Cervignano del Friuli | 497.71 mi (800.98 km) |
| Opoczno to Cesa | 774.76 mi (1,246.86 km) |
| Opoczno to Cesano Maderno | 645.19 mi (1,038.33 km) |
| Opoczno to Cesena | 623.44 mi (1,003.34 km) |
| Opoczno to Cesenatico | 615.81 mi (991.04 km) |
| Opoczno to Cetraro | 846.75 mi (1,362.72 km) |
| Opoczno to Cherasco | 736.95 mi (1,186.01 km) |
| Opoczno to Chiampo | 575.64 mi (926.40 km) |
| Opoczno to Chiaravalle | 627.17 mi (1,009.33 km) |
| Opoczno to Chiari | 624.35 mi (1,004.80 km) |
| Opoczno to Chiavari | 702.85 mi (1,131.13 km) |
| Opoczno to Chieri | 721.48 mi (1,161.11 km) |
| Opoczno to Chieti | 686.89 mi (1,105.44 km) |
| Opoczno to Chioggia | 561.91 mi (904.31 km) |
| Opoczno to Chiusi | 696.78 mi (1,121.36 km) |
