| Niederkassel to Civita Castellana | 641.32 mi (1,032.11 km) |
| Niederkassel to Civitanova Marche | 607.03 mi (976.92 km) |
| Niederkassel to Civitavecchia | 643.24 mi (1,035.19 km) |
| Niederkassel to Civitella in Val di Chiana | 556.41 mi (895.46 km) |
| Niederkassel to Clusone | 366.16 mi (589.27 km) |
| Niederkassel to Coccaglio | 387.41 mi (623.48 km) |
| Niederkassel to Codigoro | 475.67 mi (765.52 km) |
| Niederkassel to Codogno | 409.83 mi (659.56 km) |
| Niederkassel to Codroipo | 432.05 mi (695.31 km) |
| Niederkassel to Cogoleto | 450.36 mi (724.79 km) |
| Niederkassel to Colle di Val d'Elsa | 547.30 mi (880.79 km) |
| Niederkassel to Colle Salvetti | 524.11 mi (843.47 km) |
| Niederkassel to Collecchio | 444.35 mi (715.11 km) |
| Niederkassel to Colleferro | 689.03 mi (1,108.89 km) |
| Niederkassel to Collegno | 397.32 mi (639.43 km) |
