| Middle River to Barking | 3,627.85 mi (5,838.47 km) |
| Middle River to Barnet | 3,614.18 mi (5,816.46 km) |
| Middle River to Barnoldswick | 3,489.17 mi (5,615.28 km) |
| Middle River to Barnsley | 3,523.85 mi (5,671.08 km) |
| Middle River to Barnstaple | 3,466.83 mi (5,579.33 km) |
| Middle River to Barrhead | 3,373.21 mi (5,428.66 km) |
| Middle River to Barri | 3,493.24 mi (5,621.83 km) |
| Middle River to Barrow in Furness | 3,445.02 mi (5,544.22 km) |
| Middle River to Barton upon Humber | 3,561.81 mi (5,732.18 km) |
| Middle River to Barton upon Irwell | 3,490.50 mi (5,617.42 km) |
| Middle River to Barwell | 3,548.48 mi (5,710.73 km) |
| Middle River to Basford | 3,547.38 mi (5,708.96 km) |
| Middle River to Basildon | 3,643.65 mi (5,863.89 km) |
| Middle River to Basingstoke | 3,586.02 mi (5,771.14 km) |
| Middle River to Bath | 3,531.29 mi (5,683.06 km) |
