| Grefrath to Chojnow | 414.12 mi (666.46 km) |
| Grefrath to Chorzow | 554.35 mi (892.14 km) |
| Grefrath to Choszczno | 403.86 mi (649.95 km) |
| Grefrath to Chrzanow | 576.30 mi (927.47 km) |
| Grefrath to Ciechanow | 614.67 mi (989.22 km) |
| Grefrath to Ciechocinek | 537.96 mi (865.77 km) |
| Grefrath to Cieszyn | 550.06 mi (885.24 km) |
| Grefrath to Czarna Bialostocka | 726.50 mi (1,169.19 km) |
| Grefrath to Czarnkow | 446.67 mi (718.84 km) |
| Grefrath to Czechowice-Dziedzice | 563.06 mi (906.17 km) |
| Grefrath to Czeladz | 559.62 mi (900.61 km) |
| Grefrath to Czersk Pomorski | 516.51 mi (831.24 km) |
| Grefrath to Czestochowa | 555.23 mi (893.56 km) |
| Grefrath to Czluchow | 490.30 mi (789.05 km) |
| Grefrath to Dabrowa Gornicza | 564.27 mi (908.10 km) |
