| Douglas to Cassino | 1,267.76 mi (2,040.26 km) |
| Douglas to Castagneto Carducci | 1,067.77 mi (1,718.41 km) |
| Douglas to Castano Primo | 894.68 mi (1,439.85 km) |
| Douglas to Castel Bolognese | 1,064.80 mi (1,713.62 km) |
| Douglas to Castel Gandolfo | 1,211.12 mi (1,949.10 km) |
| Douglas to Castel Goffredo | 972.51 mi (1,565.11 km) |
| Douglas to Castel Maggiore | 1,037.34 mi (1,669.44 km) |
| Douglas to Castel Mella | 951.62 mi (1,531.49 km) |
| Douglas to Castel San Giorgio | 1,334.46 mi (2,147.60 km) |
| Douglas to Castel San Giovanni | 941.19 mi (1,514.70 km) |
| Douglas to Castel San Pietro Terme | 1,052.77 mi (1,694.27 km) |
| Douglas to Castel Volturno | 1,291.95 mi (2,079.18 km) |
| Douglas to Castelbuono | 1,453.46 mi (2,339.12 km) |
| Douglas to Casteldaccia | 1,427.11 mi (2,296.71 km) |
| Douglas to Castelfidardo | 1,169.68 mi (1,882.41 km) |
