| Portes-les-Valence to Chojnow | 673.81 mi (1,084.39 km) |
| Portes-les-Valence to Chorzow | 753.71 mi (1,212.97 km) |
| Portes-les-Valence to Choszczno | 744.38 mi (1,197.96 km) |
| Portes-les-Valence to Chrzanow | 767.34 mi (1,234.92 km) |
| Portes-les-Valence to Ciechanow | 901.05 mi (1,450.11 km) |
| Portes-les-Valence to Ciechocinek | 837.44 mi (1,347.73 km) |
| Portes-les-Valence to Cieszyn | 725.70 mi (1,167.90 km) |
| Portes-les-Valence to Czarna Bialostocka | 1,011.48 mi (1,627.81 km) |
| Portes-les-Valence to Czarnkow | 766.04 mi (1,232.83 km) |
| Portes-les-Valence to Czechowice-Dziedzice | 745.37 mi (1,199.56 km) |
| Portes-les-Valence to Czeladz | 760.01 mi (1,223.12 km) |
| Portes-les-Valence to Czersk Pomorski | 850.37 mi (1,368.55 km) |
| Portes-les-Valence to Czestochowa | 775.13 mi (1,247.45 km) |
| Portes-les-Valence to Czluchow | 826.05 mi (1,329.39 km) |
| Portes-les-Valence to Dabrowa Gornicza | 763.86 mi (1,229.31 km) |
