| Boulogne-Billancourt to Chojnow | 629.22 mi (1,012.63 km) |
| Boulogne-Billancourt to Chorzow | 753.92 mi (1,213.32 km) |
| Boulogne-Billancourt to Choszczno | 645.01 mi (1,038.04 km) |
| Boulogne-Billancourt to Chrzanow | 773.68 mi (1,245.12 km) |
| Boulogne-Billancourt to Ciechanow | 846.45 mi (1,362.23 km) |
| Boulogne-Billancourt to Ciechocinek | 771.61 mi (1,241.78 km) |
| Boulogne-Billancourt to Cieszyn | 739.89 mi (1,190.74 km) |
| Boulogne-Billancourt to Czarna Bialostocka | 960.12 mi (1,545.16 km) |
| Boulogne-Billancourt to Czarnkow | 683.36 mi (1,099.76 km) |
| Boulogne-Billancourt to Czechowice-Dziedzice | 756.31 mi (1,217.16 km) |
| Boulogne-Billancourt to Czeladz | 759.85 mi (1,222.86 km) |
| Boulogne-Billancourt to Czersk Pomorski | 758.68 mi (1,220.98 km) |
| Boulogne-Billancourt to Czestochowa | 762.73 mi (1,227.49 km) |
| Boulogne-Billancourt to Czluchow | 732.38 mi (1,178.65 km) |
| Boulogne-Billancourt to Dabrowa Gornicza | 764.42 mi (1,230.21 km) |
