| San Marino to Candler-McAfee (Georgia) | 1,931.36 mi (3,108.22 km) |
| San Marino to Caño Martin Peña (Puerto Rico) | 3,363.77 mi (5,413.46 km) |
| San Marino to Cañon City (Colorado) | 776.77 mi (1,250.09 km) |
| San Marino to Canóvanas (Puerto Rico) | 3,374.41 mi (5,430.59 km) |
| San Marino to Canton (Georgia) | 1,912.91 mi (3,078.53 km) |
| San Marino to Canton (Illinois) | 1,597.27 mi (2,570.56 km) |
| San Marino to Canton (Mississippi) | 1,618.89 mi (2,605.36 km) |
| San Marino to Canton (Ohio) | 2,051.56 mi (3,301.67 km) |
| San Marino to Canyon (Texas) | 922.44 mi (1,484.52 km) |
| San Marino to Canyon Lake (California) | 57.28 mi (92.18 km) |
| San Marino to Canyon Lake (Texas) | 1,197.50 mi (1,927.19 km) |
| San Marino to Cape Coral (Florida) | 2,201.71 mi (3,543.31 km) |
| San Marino to Cape Girardeau (Missouri) | 1,610.66 mi (2,592.11 km) |
| San Marino to Carbondale (Illinois) | 1,628.87 mi (2,621.41 km) |
| San Marino to Carlisle (Pennsylvania) | 2,270.88 mi (3,654.62 km) |
