| San Marino to Castelfidardo | 6,271.84 mi (10,093.54 km) |
| San Marino to Castelfiorentino | 6,183.07 mi (9,950.69 km) |
| San Marino to Castelfranco di Sopra | 6,200.75 mi (9,979.15 km) |
| San Marino to Castelfranco di Sotto | 6,170.81 mi (9,930.95 km) |
| San Marino to Castelfranco Emilia | 6,133.03 mi (9,870.16 km) |
| San Marino to Castelfranco Veneto | 6,103.48 mi (9,822.61 km) |
| San Marino to Castellabate | 6,490.15 mi (10,444.88 km) |
| San Marino to Castellammare del Golfo | 6,544.19 mi (10,531.86 km) |
| San Marino to Castellammare di Stabia | 6,452.24 mi (10,383.88 km) |
| San Marino to Castellamonte | 5,984.85 mi (9,631.69 km) |
| San Marino to Castellana Grotte | 6,525.76 mi (10,502.19 km) |
| San Marino to Castellaneta | 6,532.61 mi (10,513.22 km) |
| San Marino to Castellanza | 6,011.15 mi (9,674.02 km) |
| San Marino to Castellarano | 6,126.09 mi (9,858.98 km) |
| San Marino to Castelleone | 6,055.30 mi (9,745.07 km) |
