| Eugene to Carmona | 5,583.27 mi (8,985.40 km) |
| Eugene to Cartagena | 5,736.59 mi (9,232.15 km) |
| Eugene to Cartama | 5,658.76 mi (9,106.89 km) |
| Eugene to Cartaya | 5,538.69 mi (8,913.66 km) |
| Eugene to Caspe | 5,568.95 mi (8,962.36 km) |
| Eugene to Cassa de la Selva | 5,622.76 mi (9,048.96 km) |
| Eugene to Castalla | 5,692.51 mi (9,161.22 km) |
| Eugene to Castellbisbal | 5,618.52 mi (9,042.14 km) |
| Eugene to Castelldefels | 5,629.28 mi (9,059.45 km) |
| Eugene to Castello de Ampurias | 5,608.18 mi (9,025.49 km) |
| Eugene to Castellon de la Plana | 5,637.44 mi (9,072.58 km) |
| Eugene to Castilleja de la Cuesta | 5,572.86 mi (8,968.66 km) |
| Eugene to Catarroja | 5,657.18 mi (9,104.36 km) |
| Eugene to Catral | 5,711.96 mi (9,192.51 km) |
| Eugene to Caudete | 5,676.14 mi (9,134.86 km) |
