| Niederkassel to Busto Garolfo | 373.89 mi (601.72 km) |
| Niederkassel to Cabras | 755.44 mi (1,215.77 km) |
| Niederkassel to Cadelbosco di Sopra | 449.47 mi (723.35 km) |
| Niederkassel to Cadoneghe | 434.00 mi (698.45 km) |
| Niederkassel to Cagli | 566.75 mi (912.09 km) |
| Niederkassel to Cagliari | 807.03 mi (1,298.79 km) |
| Niederkassel to Cairo Montenotte | 447.04 mi (719.44 km) |
| Niederkassel to Caivano | 765.21 mi (1,231.49 km) |
| Niederkassel to Calcinaia | 520.57 mi (837.78 km) |
| Niederkassel to Calcinato | 401.62 mi (646.35 km) |
| Niederkassel to Calderara di Reno | 474.40 mi (763.48 km) |
| Niederkassel to Caldogno | 414.68 mi (667.36 km) |
| Niederkassel to Calenzano | 517.52 mi (832.86 km) |
| Niederkassel to Calolziocorte | 363.69 mi (585.31 km) |
| Niederkassel to Caltagirone | 1,007.86 mi (1,621.99 km) |
