| Gaithersburg to Deventer | 3,894.33 mi (6,267.32 km) |
| Gaithersburg to Diemen | 3,845.78 mi (6,189.18 km) |
| Gaithersburg to Doesburg | 3,899.80 mi (6,276.13 km) |
| Gaithersburg to Doetinchem | 3,907.68 mi (6,288.80 km) |
| Gaithersburg to Dokkum | 3,860.71 mi (6,213.21 km) |
| Gaithersburg to Dongen | 3,862.32 mi (6,215.81 km) |
| Gaithersburg to Doorn | 3,868.53 mi (6,225.79 km) |
| Gaithersburg to Dordrecht | 3,848.02 mi (6,192.79 km) |
| Gaithersburg to Drachten | 3,870.40 mi (6,228.80 km) |
| Gaithersburg to Drimmelen | 3,855.73 mi (6,205.20 km) |
| Gaithersburg to Dronten | 3,870.48 mi (6,228.93 km) |
| Gaithersburg to Druten | 3,882.28 mi (6,247.93 km) |
| Gaithersburg to Duiven | 3,897.62 mi (6,272.62 km) |
| Gaithersburg to Echt | 3,914.23 mi (6,299.35 km) |
| Gaithersburg to Edam | 3,844.42 mi (6,186.99 km) |
