| Washougal to Carmignano | 5,631.22 mi (9,062.57 km) |
| Washougal to Carovigno | 5,983.78 mi (9,629.97 km) |
| Washougal to Carpenedolo | 5,524.79 mi (8,891.30 km) |
| Washougal to Carpi | 5,570.59 mi (8,965.00 km) |
| Washougal to Carrara | 5,592.05 mi (8,999.54 km) |
| Washougal to Carugate | 5,485.90 mi (8,828.70 km) |
| Washougal to Casal di Principe | 5,878.16 mi (9,459.99 km) |
| Washougal to Casale Monferrato | 5,487.41 mi (8,831.13 km) |
| Washougal to Casale sul Sile | 5,558.15 mi (8,944.97 km) |
| Washougal to Casalecchio di Reno | 5,598.49 mi (9,009.90 km) |
| Washougal to Casalgrande | 5,578.61 mi (8,977.90 km) |
| Washougal to Casalmaggiore | 5,546.73 mi (8,926.59 km) |
| Washougal to Casalnuovo di Napoli | 5,889.67 mi (9,478.51 km) |
| Washougal to Casalpusterlengo | 5,515.85 mi (8,876.91 km) |
| Washougal to Casaluce | 5,880.85 mi (9,464.32 km) |
