| Gaithersburg to Brzesko | 4,523.06 mi (7,279.17 km) |
| Gaithersburg to Brzeszcze | 4,466.53 mi (7,188.19 km) |
| Gaithersburg to Brzeziny | 4,424.32 mi (7,120.26 km) |
| Gaithersburg to Brzozow | 4,585.48 mi (7,379.62 km) |
| Gaithersburg to Bukowno | 4,468.68 mi (7,191.64 km) |
| Gaithersburg to Busko-Zdroj | 4,508.35 mi (7,255.48 km) |
| Gaithersburg to Bydgoszcz | 4,314.69 mi (6,943.82 km) |
| Gaithersburg to Bystrzyca Klodzka | 4,360.74 mi (7,017.93 km) |
| Gaithersburg to Bytom | 4,445.16 mi (7,153.80 km) |
| Gaithersburg to Bytow | 4,262.88 mi (6,860.45 km) |
| Gaithersburg to Chelm | 4,584.51 mi (7,378.06 km) |
| Gaithersburg to Chelmek | 4,466.11 mi (7,187.50 km) |
| Gaithersburg to Chelmno | 4,322.18 mi (6,955.88 km) |
| Gaithersburg to Chelmza | 4,334.31 mi (6,975.40 km) |
| Gaithersburg to Chodziez | 4,279.40 mi (6,887.03 km) |
