| Monterotondo to Belvedere Marittimo | 238.99 mi (384.61 km) |
| Monterotondo to Benevento | 128.63 mi (207.00 km) |
| Monterotondo to Bergamo | 291.44 mi (469.03 km) |
| Monterotondo to Bernalda | 239.51 mi (385.46 km) |
| Monterotondo to Bertinoro | 147.13 mi (236.78 km) |
| Monterotondo to Besana in Brianza | 301.87 mi (485.81 km) |
| Monterotondo to Besozzo | 327.84 mi (527.61 km) |
| Monterotondo to Biancavilla | 326.56 mi (525.56 km) |
| Monterotondo to Biassono | 298.54 mi (480.46 km) |
| Monterotondo to Bibbiano | 210.58 mi (338.90 km) |
| Monterotondo to Bibbiena | 120.98 mi (194.71 km) |
| Monterotondo to Biella | 332.32 mi (534.82 km) |
| Monterotondo to Bisceglie | 208.35 mi (335.30 km) |
| Monterotondo to Bisignano | 259.63 mi (417.84 km) |
| Monterotondo to Bitetto | 224.97 mi (362.05 km) |
