| Middlesex to Beltsville (Maryland) | 166.56 mi (268.06 km) |
| Middlesex to Belvedere Park (Georgia) | 714.11 mi (1,149.26 km) |
| Middlesex to Belvidere (Illinois) | 752.34 mi (1,210.78 km) |
| Middlesex to Bemidji (Minnesota) | 1,114.79 mi (1,794.07 km) |
| Middlesex to Benbrook (Texas) | 1,379.94 mi (2,220.79 km) |
| Middlesex to Bend (Oregon) | 2,371.28 mi (3,816.21 km) |
| Middlesex to Benicia (California) | 2,521.63 mi (4,058.17 km) |
| Middlesex to Bensenville (Illinois) | 703.92 mi (1,132.85 km) |
| Middlesex to Bensville (Maryland) | 189.95 mi (305.70 km) |
| Middlesex to Benton (Arkansas) | 1,070.19 mi (1,722.30 km) |
| Middlesex to Bentonville (Arkansas) | 1,103.80 mi (1,776.39 km) |
| Middlesex to Berea (Kentucky) | 563.63 mi (907.07 km) |
| Middlesex to Berea (Ohio) | 387.90 mi (624.26 km) |
| Middlesex to Berea (South Carolina) | 586.21 mi (943.42 km) |
| Middlesex to Bergenfield (New Jersey) | 35.71 mi (57.47 km) |
