| Opoczno to Carmignano | 676.73 mi (1,089.10 km) |
| Opoczno to Carovigno | 748.22 mi (1,204.14 km) |
| Opoczno to Carpenedolo | 613.14 mi (986.75 km) |
| Opoczno to Carpi | 628.31 mi (1,011.16 km) |
| Opoczno to Carrara | 690.42 mi (1,111.12 km) |
| Opoczno to Carugate | 642.24 mi (1,033.59 km) |
| Opoczno to Casal di Principe | 773.30 mi (1,244.50 km) |
| Opoczno to Casale Monferrato | 692.95 mi (1,115.19 km) |
| Opoczno to Casale sul Sile | 539.75 mi (868.64 km) |
| Opoczno to Casalecchio di Reno | 632.02 mi (1,017.13 km) |
| Opoczno to Casalgrande | 643.63 mi (1,035.82 km) |
| Opoczno to Casalmaggiore | 632.90 mi (1,018.55 km) |
| Opoczno to Casalnuovo di Napoli | 775.98 mi (1,248.81 km) |
| Opoczno to Casalpusterlengo | 649.01 mi (1,044.48 km) |
| Opoczno to Casaluce | 773.19 mi (1,244.33 km) |
