| San Marino to Castelletto sopra Ticino | 5,997.44 mi (9,651.95 km) |
| San Marino to Castelli Calepio | 6,042.06 mi (9,723.75 km) |
| San Marino to Castelnovo ne' Monti | 6,120.91 mi (9,850.66 km) |
| San Marino to Castelnuovo Berardenga | 6,213.73 mi (10,000.04 km) |
| San Marino to Castelnuovo di Porto | 6,310.65 mi (10,156.01 km) |
| San Marino to Castelnuovo di Verona | 6,079.79 mi (9,784.48 km) |
| San Marino to Castelnuovo Rangone | 6,131.72 mi (9,868.06 km) |
| San Marino to Castelvetrano | 6,559.66 mi (10,556.74 km) |
| San Marino to Castelvetro di Modena | 6,134.90 mi (9,873.16 km) |
| San Marino to Castenaso | 6,150.81 mi (9,898.78 km) |
| San Marino to Castenedolo | 6,063.10 mi (9,757.61 km) |
| San Marino to Castiglion Fiorentino | 6,227.16 mi (10,021.65 km) |
| San Marino to Castiglione del Lago | 6,242.25 mi (10,045.93 km) |
| San Marino to Castiglione delle Stiviere | 6,073.19 mi (9,773.85 km) |
| San Marino to Castrolibero | 6,583.06 mi (10,594.41 km) |
