| Grefrath to Carovigno | 911.75 mi (1,467.33 km) |
| Grefrath to Carpenedolo | 453.13 mi (729.25 km) |
| Grefrath to Carpi | 498.76 mi (802.68 km) |
| Grefrath to Carrara | 530.82 mi (854.28 km) |
| Grefrath to Carugate | 422.57 mi (680.07 km) |
| Grefrath to Casal di Principe | 803.53 mi (1,293.16 km) |
| Grefrath to Casale Monferrato | 439.41 mi (707.17 km) |
| Grefrath to Casale sul Sile | 481.77 mi (775.34 km) |
| Grefrath to Casalecchio di Reno | 525.63 mi (845.92 km) |
| Grefrath to Casalgrande | 508.70 mi (818.67 km) |
| Grefrath to Casalmaggiore | 477.07 mi (767.77 km) |
| Grefrath to Casalnuovo di Napoli | 814.58 mi (1,310.94 km) |
| Grefrath to Casalpusterlengo | 451.80 mi (727.10 km) |
| Grefrath to Casaluce | 806.05 mi (1,297.21 km) |
| Grefrath to Casamassima | 876.32 mi (1,410.31 km) |
