| Mercer Island to Bound Brook (New Jersey) | 2,377.67 mi (3,826.49 km) |
| Mercer Island to Bountiful (Utah) | 689.90 mi (1,110.28 km) |
| Mercer Island to Bourbonnais (Illinois) | 1,737.47 mi (2,796.18 km) |
| Mercer Island to Bowie (Maryland) | 2,329.19 mi (3,748.48 km) |
| Mercer Island to Bowling Green (Kentucky) | 1,949.84 mi (3,137.97 km) |
| Mercer Island to Bowling Green (Ohio) | 1,928.66 mi (3,103.88 km) |
| Mercer Island to Box Elder (South Dakota) | 949.49 mi (1,528.05 km) |
| Mercer Island to Boynton Beach (Florida) | 2,694.21 mi (4,335.92 km) |
| Mercer Island to Bozeman (Montana) | 545.52 mi (877.92 km) |
| Mercer Island to Bradenton (Florida) | 2,537.53 mi (4,083.76 km) |
| Mercer Island to Bradfordville (Florida) | 2,320.79 mi (3,734.95 km) |
| Mercer Island to Bradley (Illinois) | 1,739.59 mi (2,799.61 km) |
| Mercer Island to Bradley Gardens (New Jersey) | 2,371.55 mi (3,816.65 km) |
| Mercer Island to Brainerd (Minnesota) | 1,317.40 mi (2,120.15 km) |
| Mercer Island to Brambleton (Virginia) | 2,291.43 mi (3,687.71 km) |
