| Erkrath to Ciampino | 704.49 mi (1,133.76 km) |
| Erkrath to Cicciano | 796.18 mi (1,281.32 km) |
| Erkrath to Cingoli | 617.47 mi (993.71 km) |
| Erkrath to Cinisello Balsamo | 405.95 mi (653.32 km) |
| Erkrath to Cinisi | 951.09 mi (1,530.63 km) |
| Erkrath to Cirie | 414.97 mi (667.83 km) |
| Erkrath to Ciro Marina | 955.70 mi (1,538.05 km) |
| Erkrath to Cislago | 396.40 mi (637.94 km) |
| Erkrath to Cisterna di Latina | 722.17 mi (1,162.22 km) |
| Erkrath to Cisternino | 881.52 mi (1,418.67 km) |
| Erkrath to Citta di Castello | 591.18 mi (951.42 km) |
| Erkrath to Citta Sant'Angelo | 688.83 mi (1,108.56 km) |
| Erkrath to Cittadella | 444.88 mi (715.96 km) |
| Erkrath to Cittanova | 994.87 mi (1,601.09 km) |
| Erkrath to Cividale del Friuli | 462.05 mi (743.60 km) |
