| Boulder to Dormagen | 4,929.64 mi (7,933.48 km) |
| Boulder to Dornstadt | 5,155.37 mi (8,296.77 km) |
| Boulder to Dorsten | 4,908.78 mi (7,899.91 km) |
| Boulder to Dortmund | 4,931.48 mi (7,936.45 km) |
| Boulder to Dorverden | 4,925.01 mi (7,926.04 km) |
| Boulder to Dossenheim | 5,066.98 mi (8,154.52 km) |
| Boulder to Dreieich | 5,041.93 mi (8,114.21 km) |
| Boulder to Drensteinfurt | 4,927.37 mi (7,929.84 km) |
| Boulder to Dresden | 5,149.16 mi (8,286.77 km) |
| Boulder to Drochtersen | 4,889.85 mi (7,869.46 km) |
| Boulder to Drolshagen | 4,963.45 mi (7,987.91 km) |
| Boulder to Duderstadt | 5,019.92 mi (8,078.78 km) |
| Boulder to Duisburg | 4,912.57 mi (7,906.03 km) |
| Boulder to Dulmen | 4,911.01 mi (7,903.51 km) |
| Boulder to Duren | 4,932.47 mi (7,938.04 km) |
