| Mainz to Brandenburg | 249.70 mi (401.86 km) |
| Mainz to Brandis | 211.83 mi (340.91 km) |
| Mainz to Braunfels | 37.21 mi (59.89 km) |
| Mainz to Braunsbedra | 182.79 mi (294.16 km) |
| Mainz to Braunschweig | 185.48 mi (298.50 km) |
| Mainz to Breckerfeld | 95.35 mi (153.46 km) |
| Mainz to Breisach am Rhein | 138.24 mi (222.48 km) |
| Mainz to Bremen | 215.41 mi (346.67 km) |
| Mainz to Bremerhaven | 246.81 mi (397.20 km) |
| Mainz to Bremervorde | 244.65 mi (393.72 km) |
| Mainz to Bretten | 68.33 mi (109.97 km) |
| Mainz to Bretzfeld | 76.07 mi (122.42 km) |
| Mainz to Brieselang | 272.14 mi (437.96 km) |
| Mainz to Brilon | 98.47 mi (158.47 km) |
| Mainz to Bruchhausen-Vilsen | 199.43 mi (320.96 km) |
