| Port Huron to Brezovica | 4,458.99 mi (7,176.05 km) |
| Port Huron to Cankova | 4,491.26 mi (7,227.99 km) |
| Port Huron to Celje | 4,482.78 mi (7,214.33 km) |
| Port Huron to Cerklje na Gorenjskem | 4,452.24 mi (7,165.19 km) |
| Port Huron to Cerknica | 4,465.89 mi (7,187.16 km) |
| Port Huron to Cerkno | 4,438.12 mi (7,142.46 km) |
| Port Huron to Cerkvenjak | 4,494.80 mi (7,233.68 km) |
| Port Huron to Cirkulane | 4,506.01 mi (7,251.73 km) |
| Port Huron to Crensovci | 4,507.72 mi (7,254.48 km) |
| Port Huron to Crna na Koroskem | 4,457.12 mi (7,173.04 km) |
| Port Huron to Crnomelj | 4,507.34 mi (7,253.86 km) |
| Port Huron to Destrnik | 4,495.48 mi (7,234.78 km) |
| Port Huron to Divaca | 4,455.53 mi (7,170.48 km) |
| Port Huron to Dobje | 4,491.74 mi (7,228.75 km) |
| Port Huron to Dobrna | 4,477.09 mi (7,205.17 km) |
