| Middlesex to Beeville (Texas) | 1,560.76 mi (2,511.80 km) |
| Middlesex to Bel Air (Maryland) | 121.15 mi (194.98 km) |
| Middlesex to Bel Air North (Maryland) | 121.52 mi (195.56 km) |
| Middlesex to Bel Air South (Maryland) | 121.06 mi (194.83 km) |
| Middlesex to Belgrade (Montana) | 1,865.39 mi (3,002.05 km) |
| Middlesex to Bell (California) | 2,418.93 mi (3,892.89 km) |
| Middlesex to Bell Gardens (California) | 2,418.02 mi (3,891.42 km) |
| Middlesex to Bella Vista (Arkansas) | 1,103.10 mi (1,775.26 km) |
| Middlesex to Bellair-Meadowbrook Terrace (Florida) | 825.11 mi (1,327.88 km) |
| Middlesex to Bellaire (Texas) | 1,396.79 mi (2,247.92 km) |
| Middlesex to Belle Chasse (Louisiana) | 1,143.33 mi (1,840.01 km) |
| Middlesex to Belle Glade (Florida) | 1,021.94 mi (1,644.66 km) |
| Middlesex to Bellefontaine (Ohio) | 486.83 mi (783.48 km) |
| Middlesex to Bellefontaine Neighbors (Missouri) | 844.73 mi (1,359.47 km) |
| Middlesex to Belleville (Illinois) | 836.26 mi (1,345.83 km) |
