| Port Huron to Chojnice | 4,261.95 mi (6,858.95 km) |
| Port Huron to Chojnow | 4,303.01 mi (6,925.02 km) |
| Port Huron to Chorzow | 4,448.77 mi (7,159.60 km) |
| Port Huron to Choszczno | 4,210.50 mi (6,776.14 km) |
| Port Huron to Chrzanow | 4,471.56 mi (7,196.29 km) |
| Port Huron to Ciechanow | 4,398.71 mi (7,079.05 km) |
| Port Huron to Ciechocinek | 4,336.22 mi (6,978.47 km) |
| Port Huron to Cieszyn | 4,460.63 mi (7,178.69 km) |
| Port Huron to Czarna Bialostocka | 4,466.84 mi (7,188.68 km) |
| Port Huron to Czarnkow | 4,260.33 mi (6,856.34 km) |
| Port Huron to Czechowice-Dziedzice | 4,466.99 mi (7,188.93 km) |
| Port Huron to Czeladz | 4,452.05 mi (7,164.88 km) |
| Port Huron to Czersk Pomorski | 4,272.41 mi (6,875.78 km) |
| Port Huron to Czestochowa | 4,433.67 mi (7,135.30 km) |
| Port Huron to Czluchow | 4,257.13 mi (6,851.19 km) |
