| Solothurn to Chojnice | 627.20 mi (1,009.39 km) |
| Solothurn to Chojnow | 470.56 mi (757.30 km) |
| Solothurn to Chorzow | 561.23 mi (903.21 km) |
| Solothurn to Choszczno | 538.44 mi (866.54 km) |
| Solothurn to Chrzanow | 576.92 mi (928.46 km) |
| Solothurn to Ciechanow | 698.56 mi (1,124.23 km) |
| Solothurn to Ciechocinek | 633.14 mi (1,018.94 km) |
| Solothurn to Cieszyn | 537.03 mi (864.27 km) |
| Solothurn to Czarna Bialostocka | 810.23 mi (1,303.94 km) |
| Solothurn to Czarnkow | 560.24 mi (901.62 km) |
| Solothurn to Czechowice-Dziedzice | 556.01 mi (894.81 km) |
| Solothurn to Czeladz | 567.53 mi (913.35 km) |
| Solothurn to Czersk Pomorski | 644.48 mi (1,037.19 km) |
| Solothurn to Czestochowa | 579.58 mi (932.75 km) |
| Solothurn to Czluchow | 620.08 mi (997.91 km) |
