| Opoczno to Cassina de' Pecchi | 642.62 mi (1,034.20 km) |
| Opoczno to Cassino | 747.73 mi (1,203.35 km) |
| Opoczno to Castagneto Carducci | 725.39 mi (1,167.41 km) |
| Opoczno to Castano Primo | 662.57 mi (1,066.30 km) |
| Opoczno to Castel Bolognese | 625.92 mi (1,007.33 km) |
| Opoczno to Castel Gandolfo | 756.87 mi (1,218.06 km) |
| Opoczno to Castel Goffredo | 615.08 mi (989.87 km) |
| Opoczno to Castel Maggiore | 624.95 mi (1,005.75 km) |
| Opoczno to Castel Mella | 616.10 mi (991.51 km) |
| Opoczno to Castel San Giorgio | 778.83 mi (1,253.41 km) |
| Opoczno to Castel San Giovanni | 662.72 mi (1,066.55 km) |
| Opoczno to Castel San Pietro Terme | 627.62 mi (1,010.05 km) |
| Opoczno to Castel Volturno | 775.10 mi (1,247.40 km) |
| Opoczno to Castelbuono | 976.51 mi (1,571.54 km) |
| Opoczno to Casteldaccia | 977.67 mi (1,573.41 km) |
