| Rancho San Diego to Cortona | 6,272.10 mi (10,093.97 km) |
| Rancho San Diego to Cosenza | 6,624.69 mi (10,661.42 km) |
| Rancho San Diego to Cossato | 6,028.21 mi (9,701.47 km) |
| Rancho San Diego to Costa Volpino | 6,078.30 mi (9,782.09 km) |
| Rancho San Diego to Creazzo | 6,138.10 mi (9,878.32 km) |
| Rancho San Diego to Crema | 6,088.45 mi (9,798.41 km) |
| Rancho San Diego to Cremona | 6,111.84 mi (9,836.05 km) |
| Rancho San Diego to Crevalcore | 6,169.72 mi (9,929.21 km) |
| Rancho San Diego to Crispiano | 6,585.44 mi (10,598.25 km) |
| Rancho San Diego to Crosia | 6,627.08 mi (10,665.25 km) |
| Rancho San Diego to Crotone | 6,664.96 mi (10,726.21 km) |
| Rancho San Diego to Cuneo | 6,066.45 mi (9,763.00 km) |
| Rancho San Diego to Cuorgne | 6,019.74 mi (9,687.84 km) |
| Rancho San Diego to Cusano Milanino | 6,062.71 mi (9,756.99 km) |
| Rancho San Diego to Cutro | 6,663.34 mi (10,723.61 km) |
