| Niederkassel to Calafell | 713.79 mi (1,148.74 km) |
| Niederkassel to Calahorra | 726.25 mi (1,168.78 km) |
| Niederkassel to Calasparra | 968.62 mi (1,558.84 km) |
| Niederkassel to Calatayud | 773.63 mi (1,245.03 km) |
| Niederkassel to Caldas de Montbuy | 675.45 mi (1,087.03 km) |
| Niederkassel to Caldas de Reyes | 931.34 mi (1,498.84 km) |
| Niederkassel to Calella | 668.78 mi (1,076.29 km) |
| Niederkassel to Callosa de Segura | 958.62 mi (1,542.75 km) |
| Niederkassel to Calpe | 907.26 mi (1,460.09 km) |
| Niederkassel to Calvia | 807.63 mi (1,299.76 km) |
| Niederkassel to Camas | 1,127.40 mi (1,814.38 km) |
| Niederkassel to Cambados | 942.20 mi (1,516.32 km) |
| Niederkassel to Cambre | 888.38 mi (1,429.71 km) |
| Niederkassel to Cambrils | 731.70 mi (1,177.55 km) |
| Niederkassel to Campo de Criptana | 929.31 mi (1,495.58 km) |
