| San Marino to Corato | 6,487.35 mi (10,440.38 km) |
| San Marino to Corbetta | 6,019.46 mi (9,687.38 km) |
| San Marino to Corciano | 6,250.03 mi (10,058.46 km) |
| San Marino to Cordenons | 6,109.78 mi (9,832.73 km) |
| San Marino to Cori | 6,350.27 mi (10,219.77 km) |
| San Marino to Coriano | 6,215.24 mi (10,002.47 km) |
| San Marino to Corigliano Calabro | 6,577.33 mi (10,585.18 km) |
| San Marino to Corleone | 6,569.79 mi (10,573.06 km) |
| San Marino to Cormano | 6,023.13 mi (9,693.30 km) |
| San Marino to Cornaredo | 6,021.47 mi (9,690.61 km) |
| San Marino to Cornate d'Adda | 6,027.48 mi (9,700.29 km) |
| San Marino to Cornedo Vicentino | 6,088.21 mi (9,798.02 km) |
| San Marino to Correggio | 6,115.30 mi (9,841.62 km) |
| San Marino to Corridonia | 6,282.55 mi (10,110.79 km) |
| San Marino to Corsico | 6,027.60 mi (9,700.48 km) |
