| Opoczno to Capodrise | 768.17 mi (1,236.25 km) |
| Opoczno to Capoterra | 1,004.20 mi (1,616.10 km) |
| Opoczno to Capriolo | 616.96 mi (992.91 km) |
| Opoczno to Capua | 766.08 mi (1,232.89 km) |
| Opoczno to Capurso | 731.30 mi (1,176.91 km) |
| Opoczno to Carate Brianza | 637.58 mi (1,026.08 km) |
| Opoczno to Caravaggio | 633.78 mi (1,019.97 km) |
| Opoczno to Carbonera | 536.86 mi (864.00 km) |
| Opoczno to Carbonia | 1,016.53 mi (1,635.94 km) |
| Opoczno to Cardito | 774.68 mi (1,246.72 km) |
| Opoczno to Carignano | 731.85 mi (1,177.80 km) |
| Opoczno to Carini | 978.06 mi (1,574.03 km) |
| Opoczno to Carlentini | 1,007.36 mi (1,621.19 km) |
| Opoczno to Carmagnola | 732.92 mi (1,179.52 km) |
| Opoczno to Carmiano | 769.69 mi (1,238.69 km) |
