| Coos Bay to Cortona | 5,866.61 mi (9,441.39 km) |
| Coos Bay to Cosenza | 6,213.94 mi (10,000.37 km) |
| Coos Bay to Cossato | 5,633.03 mi (9,065.49 km) |
| Coos Bay to Costa Volpino | 5,667.40 mi (9,120.80 km) |
| Coos Bay to Creazzo | 5,719.60 mi (9,204.80 km) |
| Coos Bay to Crema | 5,684.06 mi (9,147.61 km) |
| Coos Bay to Cremona | 5,706.74 mi (9,184.10 km) |
| Coos Bay to Crevalcore | 5,759.71 mi (9,269.35 km) |
| Coos Bay to Crispiano | 6,157.92 mi (9,910.21 km) |
| Coos Bay to Crosia | 6,210.26 mi (9,994.45 km) |
| Coos Bay to Crotone | 6,248.52 mi (10,056.01 km) |
| Coos Bay to Cuneo | 5,685.18 mi (9,149.41 km) |
| Coos Bay to Cuorgne | 5,629.64 mi (9,060.04 km) |
| Coos Bay to Cusano Milanino | 5,660.46 mi (9,109.64 km) |
| Coos Bay to Cutro | 6,248.35 mi (10,055.75 km) |
