| Cologne to Cassino | 729.51 mi (1,174.03 km) |
| Cologne to Castagneto Carducci | 563.44 mi (906.77 km) |
| Cologne to Castano Primo | 381.38 mi (613.77 km) |
| Cologne to Castel Bolognese | 509.77 mi (820.39 km) |
| Cologne to Castel Gandolfo | 690.16 mi (1,110.71 km) |
| Cologne to Castel Goffredo | 421.97 mi (679.09 km) |
| Cologne to Castel Maggiore | 485.31 mi (781.03 km) |
| Cologne to Castel Mella | 403.33 mi (649.09 km) |
| Cologne to Castel San Giorgio | 793.38 mi (1,276.82 km) |
| Cologne to Castel San Giovanni | 422.51 mi (679.96 km) |
| Cologne to Castel San Pietro Terme | 500.14 mi (804.89 km) |
| Cologne to Castel Volturno | 759.68 mi (1,222.58 km) |
| Cologne to Castelbuono | 964.03 mi (1,551.45 km) |
| Cologne to Casteldaccia | 946.65 mi (1,523.49 km) |
| Cologne to Castelfidardo | 601.40 mi (967.85 km) |
