| Castel Gandolfo to Andrychow | 645.67 mi (1,039.10 km) |
| Castel Gandolfo to Augustow | 961.26 mi (1,547.00 km) |
| Castel Gandolfo to Banino | 912.45 mi (1,468.44 km) |
| Castel Gandolfo to Barlinek | 786.47 mi (1,265.70 km) |
| Castel Gandolfo to Bartoszyce | 940.97 mi (1,514.34 km) |
| Castel Gandolfo to Bedzin | 668.79 mi (1,076.32 km) |
| Castel Gandolfo to Belchatow | 736.51 mi (1,185.31 km) |
| Castel Gandolfo to Biala Podlaska | 863.73 mi (1,390.03 km) |
| Castel Gandolfo to Bialogard | 860.32 mi (1,384.55 km) |
| Castel Gandolfo to Bialy Kamien | 647.29 mi (1,041.72 km) |
| Castel Gandolfo to Bialystok | 925.01 mi (1,488.66 km) |
| Castel Gandolfo to Bielawa | 646.73 mi (1,040.82 km) |
| Castel Gandolfo to Bielsk Podlaski | 905.88 mi (1,457.87 km) |
| Castel Gandolfo to Bielsko-Biala | 636.78 mi (1,024.80 km) |
| Castel Gandolfo to Bierun | 656.48 mi (1,056.51 km) |
