| Altena to Catania | 1,020.21 mi (1,641.86 km) |
| Altena to Catanzaro | 959.52 mi (1,544.19 km) |
| Altena to Cattolica | 558.57 mi (898.94 km) |
| Altena to Cava de' Tirreni | 805.54 mi (1,296.40 km) |
| Altena to Cavallino | 910.81 mi (1,465.81 km) |
| Altena to Cavarzere | 471.63 mi (759.01 km) |
| Altena to Cave | 700.92 mi (1,128.02 km) |
| Altena to Cavriago | 474.79 mi (764.09 km) |
| Altena to Cavriglia | 566.41 mi (911.55 km) |
| Altena to Cazzago San Martino | 409.57 mi (659.14 km) |
| Altena to Ceccano | 724.08 mi (1,165.29 km) |
| Altena to Cecina | 567.41 mi (913.15 km) |
| Altena to Cefalu | 967.38 mi (1,556.85 km) |
| Altena to Ceglie Messapico | 872.60 mi (1,404.31 km) |
| Altena to Celano | 694.57 mi (1,117.80 km) |
