| Mason City to Brandenburg | 4,496.80 mi (7,236.90 km) |
| Mason City to Brandis | 4,546.81 mi (7,317.39 km) |
| Mason City to Braunfels | 4,438.17 mi (7,142.54 km) |
| Mason City to Braunsbedra | 4,525.44 mi (7,282.99 km) |
| Mason City to Braunschweig | 4,436.81 mi (7,140.36 km) |
| Mason City to Breckerfeld | 4,375.06 mi (7,040.98 km) |
| Mason City to Breisach am Rhein | 4,514.60 mi (7,265.55 km) |
| Mason City to Bremen | 4,345.41 mi (6,993.27 km) |
| Mason City to Bremerhaven | 4,319.03 mi (6,950.80 km) |
| Mason City to Bremervorde | 4,339.92 mi (6,984.43 km) |
| Mason City to Bretten | 4,512.29 mi (7,261.84 km) |
| Mason City to Bretzfeld | 4,531.77 mi (7,293.18 km) |
| Mason City to Brieselang | 4,504.67 mi (7,249.57 km) |
| Mason City to Brilon | 4,407.70 mi (7,093.51 km) |
| Mason City to Bruchhausen-Vilsen | 4,362.43 mi (7,020.65 km) |
