| Washougal to Chojnice | 5,182.37 mi (8,340.22 km) |
| Washougal to Chojnow | 5,298.37 mi (8,526.90 km) |
| Washougal to Chorzow | 5,418.55 mi (8,720.31 km) |
| Washougal to Choszczno | 5,172.86 mi (8,324.91 km) |
| Washougal to Chrzanow | 5,437.71 mi (8,751.14 km) |
| Washougal to Ciechanow | 5,291.10 mi (8,515.20 km) |
| Washougal to Ciechocinek | 5,255.90 mi (8,458.55 km) |
| Washougal to Cieszyn | 5,446.23 mi (8,764.85 km) |
| Washougal to Czarna Bialostocka | 5,310.07 mi (8,545.73 km) |
| Washougal to Czarnkow | 5,212.01 mi (8,387.92 km) |
| Washougal to Czechowice-Dziedzice | 5,443.59 mi (8,760.61 km) |
| Washougal to Czeladz | 5,419.11 mi (8,721.22 km) |
| Washougal to Czersk Pomorski | 5,184.74 mi (8,344.04 km) |
| Washougal to Czestochowa | 5,390.90 mi (8,675.81 km) |
| Washougal to Czluchow | 5,180.90 mi (8,337.85 km) |
