| Gourock to Dillenburg | 648.09 mi (1,043.00 km) |
| Gourock to Dillingen | 820.53 mi (1,320.52 km) |
| Gourock to Dillingen | 663.70 mi (1,068.12 km) |
| Gourock to Dingolfing | 885.68 mi (1,425.37 km) |
| Gourock to Dinkelsbuhl | 791.73 mi (1,274.16 km) |
| Gourock to Dinklage | 568.17 mi (914.38 km) |
| Gourock to Dinslaken | 559.70 mi (900.75 km) |
| Gourock to Dippoldiswalde | 834.12 mi (1,342.38 km) |
| Gourock to Ditzingen | 762.58 mi (1,227.25 km) |
| Gourock to Dobeln | 805.42 mi (1,296.20 km) |
| Gourock to Doberlug-Kirchhain | 805.03 mi (1,295.56 km) |
| Gourock to Donaueschingen | 789.52 mi (1,270.61 km) |
| Gourock to Donauworth | 825.17 mi (1,327.98 km) |
| Gourock to Donzdorf | 793.70 mi (1,277.34 km) |
| Gourock to Dorfen | 890.77 mi (1,433.56 km) |
