| Douglas to Catania | 1,511.68 mi (2,432.82 km) |
| Douglas to Catanzaro | 1,497.31 mi (2,409.69 km) |
| Douglas to Cattolica | 1,116.36 mi (1,796.61 km) |
| Douglas to Cava de' Tirreni | 1,338.37 mi (2,153.90 km) |
| Douglas to Cavallino | 1,492.59 mi (2,402.09 km) |
| Douglas to Cavarzere | 1,043.43 mi (1,679.24 km) |
| Douglas to Cave | 1,218.60 mi (1,961.15 km) |
| Douglas to Cavriago | 998.87 mi (1,607.53 km) |
| Douglas to Cavriglia | 1,086.23 mi (1,748.12 km) |
| Douglas to Cazzago San Martino | 943.48 mi (1,518.38 km) |
| Douglas to Ceccano | 1,245.49 mi (2,004.43 km) |
| Douglas to Cecina | 1,057.83 mi (1,702.41 km) |
| Douglas to Cefalu | 1,445.28 mi (2,325.95 km) |
| Douglas to Ceglie Messapico | 1,449.74 mi (2,333.12 km) |
| Douglas to Celano | 1,230.29 mi (1,979.97 km) |
