| Middlesex to Brown Deer (Wisconsin) | 715.21 mi (1,151.02 km) |
| Middlesex to Brownsburg (Indiana) | 628.61 mi (1,011.65 km) |
| Middlesex to Brownsville (Florida) | 1,071.33 mi (1,724.14 km) |
| Middlesex to Brownsville (Texas) | 1,656.35 mi (2,665.64 km) |
| Middlesex to Brownwood (Texas) | 1,490.03 mi (2,397.97 km) |
| Middlesex to Brunswick (Georgia) | 758.95 mi (1,221.42 km) |
| Middlesex to Brunswick (Ohio) | 384.85 mi (619.35 km) |
| Middlesex to Brushy Creek (Texas) | 1,473.38 mi (2,371.18 km) |
| Middlesex to Bryan (Texas) | 1,401.10 mi (2,254.85 km) |
| Middlesex to Bryant (Arkansas) | 1,064.96 mi (1,713.88 km) |
| Middlesex to Bryn Mawr-Skyway (Washington) | 2,380.13 mi (3,830.45 km) |
| Middlesex to Buckeye (Arizona) | 2,143.99 mi (3,450.42 km) |
| Middlesex to Buckhall (Virginia) | 202.26 mi (325.51 km) |
| Middlesex to Bucyrus (Ohio) | 443.90 mi (714.39 km) |
| Middlesex to Buda (Texas) | 1,496.05 mi (2,407.66 km) |
