| Washougal to Corato | 5,925.92 mi (9,536.85 km) |
| Washougal to Corbetta | 5,480.00 mi (8,819.21 km) |
| Washougal to Corciano | 5,704.16 mi (9,179.96 km) |
| Washougal to Cordenons | 5,544.15 mi (8,922.45 km) |
| Washougal to Cori | 5,809.34 mi (9,349.23 km) |
| Washougal to Coriano | 5,662.29 mi (9,112.57 km) |
| Washougal to Corigliano Calabro | 6,023.75 mi (9,694.28 km) |
| Washougal to Corleone | 6,049.66 mi (9,735.99 km) |
| Washougal to Cormano | 5,481.60 mi (8,821.79 km) |
| Washougal to Cornaredo | 5,481.08 mi (8,820.94 km) |
| Washougal to Cornate d'Adda | 5,483.47 mi (8,824.79 km) |
| Washougal to Cornedo Vicentino | 5,532.95 mi (8,904.43 km) |
| Washougal to Correggio | 5,568.80 mi (8,962.11 km) |
| Washougal to Corridonia | 5,728.03 mi (9,218.37 km) |
| Washougal to Corsico | 5,487.13 mi (8,830.69 km) |
