| Grefrath to Civita Castellana | 686.81 mi (1,105.31 km) |
| Grefrath to Civitanova Marche | 653.63 mi (1,051.91 km) |
| Grefrath to Civitavecchia | 688.09 mi (1,107.37 km) |
| Grefrath to Civitella in Val di Chiana | 601.83 mi (968.56 km) |
| Grefrath to Clusone | 411.14 mi (661.66 km) |
| Grefrath to Coccaglio | 432.17 mi (695.51 km) |
| Grefrath to Codigoro | 522.07 mi (840.20 km) |
| Grefrath to Codogno | 453.82 mi (730.35 km) |
| Grefrath to Codroipo | 478.85 mi (770.64 km) |
| Grefrath to Cogoleto | 491.67 mi (791.26 km) |
| Grefrath to Colle di Val d'Elsa | 592.11 mi (952.91 km) |
| Grefrath to Colle Salvetti | 568.23 mi (914.48 km) |
| Grefrath to Collecchio | 488.85 mi (786.72 km) |
| Grefrath to Colleferro | 734.73 mi (1,182.44 km) |
| Grefrath to Collegno | 436.13 mi (701.88 km) |
