| San Mateo to Cortona | 6,160.31 mi (9,914.05 km) |
| San Mateo to Cosenza | 6,511.17 mi (10,478.72 km) |
| San Mateo to Cossato | 5,921.57 mi (9,529.84 km) |
| San Mateo to Costa Volpino | 5,962.48 mi (9,595.68 km) |
| San Mateo to Creazzo | 6,017.95 mi (9,684.95 km) |
| San Mateo to Crema | 5,976.56 mi (9,618.34 km) |
| San Mateo to Cremona | 5,999.62 mi (9,655.45 km) |
| San Mateo to Crevalcore | 6,054.80 mi (9,744.26 km) |
| San Mateo to Crispiano | 6,461.61 mi (10,398.96 km) |
| San Mateo to Crosia | 6,509.90 mi (10,476.68 km) |
| San Mateo to Crotone | 6,548.16 mi (10,538.25 km) |
| San Mateo to Cuneo | 5,968.23 mi (9,604.93 km) |
| San Mateo to Cuorgne | 5,916.08 mi (9,521.01 km) |
| San Mateo to Cusano Milanino | 5,952.00 mi (9,578.81 km) |
| San Mateo to Cutro | 6,547.41 mi (10,537.04 km) |
