| Rancho San Diego to Carlsbad (California) | 32.73 mi (52.67 km) |
| Rancho San Diego to Carlsbad (New Mexico) | 738.26 mi (1,188.11 km) |
| Rancho San Diego to Carmel (Indiana) | 1,773.13 mi (2,853.58 km) |
| Rancho San Diego to Carmichael (California) | 474.82 mi (764.14 km) |
| Rancho San Diego to Carney (Maryland) | 2,282.25 mi (3,672.93 km) |
| Rancho San Diego to Carnot-Moon (Pennsylvania) | 2,087.83 mi (3,360.04 km) |
| Rancho San Diego to Carol Stream (Illinois) | 1,693.19 mi (2,724.93 km) |
| Rancho San Diego to Carolina (Puerto Rico) | 3,292.36 mi (5,298.54 km) |
| Rancho San Diego to Carolina Forest (South Carolina) | 2,184.31 mi (3,515.31 km) |
| Rancho San Diego to Carpentersville (Illinois) | 1,688.37 mi (2,717.16 km) |
| Rancho San Diego to Carpinteria (California) | 187.09 mi (301.09 km) |
| Rancho San Diego to Carrboro (North Carolina) | 2,155.84 mi (3,469.48 km) |
| Rancho San Diego to Carroll (Iowa) | 1,364.84 mi (2,196.50 km) |
| Rancho San Diego to Carrollton (Georgia) | 1,834.77 mi (2,952.78 km) |
| Rancho San Diego to Carrollton (Texas) | 1,160.06 mi (1,866.93 km) |
