| San Marino to Castrovillari | 6,555.29 mi (10,549.72 km) |
| San Marino to Catania | 6,647.28 mi (10,697.77 km) |
| San Marino to Catanzaro | 6,618.96 mi (10,652.19 km) |
| San Marino to Cattolica | 6,219.40 mi (10,009.15 km) |
| San Marino to Cava de' Tirreni | 6,458.96 mi (10,394.70 km) |
| San Marino to Cavallino | 6,589.07 mi (10,604.08 km) |
| San Marino to Cavarzere | 6,136.37 mi (9,875.53 km) |
| San Marino to Cave | 6,341.65 mi (10,205.89 km) |
| San Marino to Cavriago | 6,111.12 mi (9,834.89 km) |
| San Marino to Cavriglia | 6,204.05 mi (9,984.45 km) |
| San Marino to Cazzago San Martino | 6,048.72 mi (9,734.48 km) |
| San Marino to Ceccano | 6,368.01 mi (10,248.33 km) |
| San Marino to Cecina | 6,183.48 mi (9,951.35 km) |
| San Marino to Cefalu | 6,582.26 mi (10,593.13 km) |
| San Marino to Ceglie Messapico | 6,549.02 mi (10,539.63 km) |
