| Gaithersburg to Alesd | 4,701.78 mi (7,566.78 km) |
| Gaithersburg to Alexandria | 4,941.82 mi (7,953.09 km) |
| Gaithersburg to Arad | 4,693.61 mi (7,553.63 km) |
| Gaithersburg to Avrig | 4,832.55 mi (7,777.24 km) |
| Gaithersburg to Babadag | 5,035.18 mi (8,103.33 km) |
| Gaithersburg to Bacau | 4,894.17 mi (7,876.40 km) |
| Gaithersburg to Baia Mare | 4,723.46 mi (7,601.67 km) |
| Gaithersburg to Baia-Sprie | 4,728.36 mi (7,609.56 km) |
| Gaithersburg to Baicoi | 4,917.96 mi (7,914.69 km) |
| Gaithersburg to Bailesti | 4,860.11 mi (7,821.59 km) |
| Gaithersburg to Bals | 4,877.02 mi (7,848.80 km) |
| Gaithersburg to Baraolt | 4,865.03 mi (7,829.50 km) |
| Gaithersburg to Barlad | 4,937.94 mi (7,946.84 km) |
| Gaithersburg to Beclean | 4,765.63 mi (7,669.55 km) |
| Gaithersburg to Beius | 4,715.89 mi (7,589.50 km) |
