| San Marino to Cognac | 5,694.64 mi (9,164.64 km) |
| San Marino to Cogolin | 6,053.57 mi (9,742.28 km) |
| San Marino to Colmar | 5,835.80 mi (9,391.81 km) |
| San Marino to Colombes | 5,630.74 mi (9,061.79 km) |
| San Marino to Colomiers | 5,852.62 mi (9,418.88 km) |
| San Marino to Combs-la-Ville | 5,652.98 mi (9,097.59 km) |
| San Marino to Comines | 5,566.92 mi (8,959.09 km) |
| San Marino to Compiegne | 5,625.76 mi (9,053.78 km) |
| San Marino to Concarneau | 5,467.72 mi (8,799.44 km) |
| San Marino to Conde-sur-l'Escaut | 5,600.26 mi (9,012.75 km) |
| San Marino to Conflans-Sainte-Honorine | 5,622.08 mi (9,047.86 km) |
| San Marino to Corbas | 5,877.31 mi (9,458.62 km) |
| San Marino to Corbeil-Essonnes | 5,653.11 mi (9,097.80 km) |
| San Marino to Cormeilles-en-Parisis | 5,626.67 mi (9,055.25 km) |
| San Marino to Cosne sur Loire | 5,725.73 mi (9,214.68 km) |
