| Opovo to Castelletto sopra Ticino | 573.79 mi (923.43 km) |
| Opovo to Castelli Calepio | 512.59 mi (824.93 km) |
| Opovo to Castelnovo ne' Monti | 493.77 mi (794.65 km) |
| Opovo to Castelnuovo Berardenga | 457.28 mi (735.92 km) |
| Opovo to Castelnuovo di Porto | 444.86 mi (715.94 km) |
| Opovo to Castelnuovo di Verona | 470.58 mi (757.32 km) |
| Opovo to Castelnuovo Rangone | 466.62 mi (750.95 km) |
| Opovo to Castelvetrano | 644.37 mi (1,037.01 km) |
| Opovo to Castelvetro di Modena | 466.27 mi (750.39 km) |
| Opovo to Castenaso | 440.78 mi (709.36 km) |
| Opovo to Castenedolo | 493.35 mi (793.97 km) |
| Opovo to Castiglion Fiorentino | 437.58 mi (704.22 km) |
| Opovo to Castiglione del Lago | 436.21 mi (702.02 km) |
| Opovo to Castiglione delle Stiviere | 483.53 mi (778.17 km) |
| Opovo to Castrolibero | 451.43 mi (726.50 km) |
