| Corvallis to Cortona | 5,771.61 mi (9,288.51 km) |
| Corvallis to Cosenza | 6,118.94 mi (9,847.48 km) |
| Corvallis to Cossato | 5,538.08 mi (8,912.68 km) |
| Corvallis to Costa Volpino | 5,572.41 mi (8,967.92 km) |
| Corvallis to Creazzo | 5,624.59 mi (9,051.91 km) |
| Corvallis to Crema | 5,589.07 mi (8,994.75 km) |
| Corvallis to Cremona | 5,611.75 mi (9,031.23 km) |
| Corvallis to Crevalcore | 5,664.71 mi (9,116.47 km) |
| Corvallis to Crispiano | 6,062.94 mi (9,757.36 km) |
| Corvallis to Crosia | 6,115.26 mi (9,841.57 km) |
| Corvallis to Crotone | 6,153.52 mi (9,903.13 km) |
| Corvallis to Cuneo | 5,590.30 mi (8,996.71 km) |
| Corvallis to Cuorgne | 5,534.71 mi (8,907.26 km) |
| Corvallis to Cusano Milanino | 5,565.48 mi (8,956.78 km) |
| Corvallis to Cutro | 6,153.35 mi (9,902.86 km) |
