| San Marino to Carlsbad (California) | 83.86 mi (134.95 km) |
| San Marino to Carlsbad (New Mexico) | 809.70 mi (1,303.09 km) |
| San Marino to Carmel (Indiana) | 1,798.30 mi (2,894.09 km) |
| San Marino to Carmichael (California) | 359.13 mi (577.97 km) |
| San Marino to Carney (Maryland) | 2,310.17 mi (3,717.85 km) |
| San Marino to Carnot-Moon (Pennsylvania) | 2,111.68 mi (3,398.43 km) |
| San Marino to Carol Stream (Illinois) | 1,708.35 mi (2,749.32 km) |
| San Marino to Carolina (Puerto Rico) | 3,368.71 mi (5,421.42 km) |
| San Marino to Carolina Forest (South Carolina) | 2,232.95 mi (3,593.58 km) |
| San Marino to Carpentersville (Illinois) | 1,702.44 mi (2,739.81 km) |
| San Marino to Carpinteria (California) | 82.08 mi (132.09 km) |
| San Marino to Carrboro (North Carolina) | 2,196.93 mi (3,535.62 km) |
| San Marino to Carroll (Iowa) | 1,372.54 mi (2,208.89 km) |
| San Marino to Carrollton (Georgia) | 1,887.27 mi (3,037.27 km) |
| San Marino to Carrollton (Texas) | 1,221.75 mi (1,966.22 km) |
