| Foster City to Cortona | 6,158.80 mi (9,911.64 km) |
| Foster City to Cosenza | 6,509.69 mi (10,476.33 km) |
| Foster City to Cossato | 5,920.03 mi (9,527.37 km) |
| Foster City to Costa Volpino | 5,960.99 mi (9,593.28 km) |
| Foster City to Creazzo | 6,016.48 mi (9,682.59 km) |
| Foster City to Crema | 5,975.05 mi (9,615.92 km) |
| Foster City to Cremona | 5,998.11 mi (9,653.03 km) |
| Foster City to Crevalcore | 6,053.31 mi (9,741.86 km) |
| Foster City to Crispiano | 6,460.18 mi (10,396.65 km) |
| Foster City to Crosia | 6,508.44 mi (10,474.32 km) |
| Foster City to Crotone | 6,546.69 mi (10,535.88 km) |
| Foster City to Cuneo | 5,966.66 mi (9,602.40 km) |
| Foster City to Cuorgne | 5,914.53 mi (9,518.52 km) |
| Foster City to Cusano Milanino | 5,950.48 mi (9,576.38 km) |
| Foster City to Cutro | 6,545.94 mi (10,534.68 km) |
