| Niederkassel to Carovigno | 864.93 mi (1,391.97 km) |
| Niederkassel to Carpenedolo | 407.90 mi (656.45 km) |
| Niederkassel to Carpi | 453.39 mi (729.66 km) |
| Niederkassel to Carrara | 486.96 mi (783.68 km) |
| Niederkassel to Carugate | 378.96 mi (609.87 km) |
| Niederkassel to Casal di Principe | 757.42 mi (1,218.95 km) |
| Niederkassel to Casale Monferrato | 398.10 mi (640.67 km) |
| Niederkassel to Casale sul Sile | 435.03 mi (700.12 km) |
| Niederkassel to Casalecchio di Reno | 480.03 mi (772.53 km) |
| Niederkassel to Casalgrande | 463.63 mi (746.14 km) |
| Niederkassel to Casalmaggiore | 432.13 mi (695.45 km) |
| Niederkassel to Casalnuovo di Napoli | 768.39 mi (1,236.61 km) |
| Niederkassel to Casalpusterlengo | 407.89 mi (656.44 km) |
| Niederkassel to Casaluce | 759.91 mi (1,222.95 km) |
| Niederkassel to Casamassima | 829.51 mi (1,334.97 km) |
