| Castelli Calepio to Black Forest (Colorado) | 5,321.32 mi (8,563.84 km) |
| Castelli Calepio to Blackfoot (Idaho) | 5,351.15 mi (8,611.84 km) |
| Castelli Calepio to Blackhawk (California) | 5,940.78 mi (9,560.76 km) |
| Castelli Calepio to Blacksburg (Virginia) | 4,461.71 mi (7,180.43 km) |
| Castelli Calepio to Blackwells Mills (New Jersey) | 4,076.39 mi (6,560.31 km) |
| Castelli Calepio to Blaine (Minnesota) | 4,610.05 mi (7,419.16 km) |
| Castelli Calepio to Bloomingdale (Florida) | 4,966.66 mi (7,993.06 km) |
| Castelli Calepio to Bloomingdale (Illinois) | 4,565.09 mi (7,346.80 km) |
| Castelli Calepio to Bloomington (California) | 6,023.06 mi (9,693.19 km) |
| Castelli Calepio to Bloomington (Illinois) | 4,666.61 mi (7,510.18 km) |
| Castelli Calepio to Bloomington (Indiana) | 4,628.96 mi (7,449.60 km) |
| Castelli Calepio to Bloomington (Minnesota) | 4,629.68 mi (7,450.75 km) |
| Castelli Calepio to Bloomsburg (Pennsylvania) | 4,133.85 mi (6,652.80 km) |
| Castelli Calepio to Blue Ash (Ohio) | 4,537.97 mi (7,303.16 km) |
| Castelli Calepio to Blue Island (Illinois) | 4,562.30 mi (7,342.31 km) |
