| Gaithersburg to Apatin | 4,619.74 mi (7,434.76 km) |
| Gaithersburg to Arandelovac | 4,735.90 mi (7,621.69 km) |
| Gaithersburg to Arilje | 4,738.46 mi (7,625.81 km) |
| Gaithersburg to Babusnica | 4,860.83 mi (7,822.75 km) |
| Gaithersburg to Bac | 4,640.58 mi (7,468.29 km) |
| Gaithersburg to Backa Palanka | 4,652.41 mi (7,487.32 km) |
| Gaithersburg to Backa Topola | 4,640.31 mi (7,467.86 km) |
| Gaithersburg to Backi Petrovac | 4,655.97 mi (7,493.06 km) |
| Gaithersburg to Bajina Basta | 4,707.83 mi (7,576.52 km) |
| Gaithersburg to Batajnica | 4,701.52 mi (7,566.36 km) |
| Gaithersburg to Batocina | 4,763.45 mi (7,666.02 km) |
| Gaithersburg to Becej | 4,664.03 mi (7,506.03 km) |
| Gaithersburg to Bela Crkva | 4,747.61 mi (7,640.54 km) |
| Gaithersburg to Bela Palanka | 4,850.50 mi (7,806.13 km) |
| Gaithersburg to Belgrade | 4,711.94 mi (7,583.14 km) |
