| Barstow to Cortona | 6,156.42 mi (9,907.80 km) |
| Barstow to Cosenza | 6,509.01 mi (10,475.23 km) |
| Barstow to Cossato | 5,913.34 mi (9,516.60 km) |
| Barstow to Costa Volpino | 5,961.62 mi (9,594.30 km) |
| Barstow to Creazzo | 6,020.61 mi (9,689.23 km) |
| Barstow to Crema | 5,972.57 mi (9,611.92 km) |
| Barstow to Cremona | 5,995.91 mi (9,649.48 km) |
| Barstow to Crevalcore | 6,053.31 mi (9,741.86 km) |
| Barstow to Crispiano | 6,467.65 mi (10,408.68 km) |
| Barstow to Crosia | 6,510.65 mi (10,477.88 km) |
| Barstow to Crotone | 6,548.64 mi (10,539.03 km) |
| Barstow to Cuneo | 5,953.36 mi (9,581.00 km) |
| Barstow to Cuorgne | 5,905.47 mi (9,503.94 km) |
| Barstow to Cusano Milanino | 5,947.04 mi (9,570.84 km) |
| Barstow to Cutro | 6,547.20 mi (10,536.70 km) |
