| River Grove to Bonhill | 3,658.14 mi (5,887.21 km) |
| River Grove to Bonnyrigg | 3,713.30 mi (5,975.97 km) |
| River Grove to Bootle | 3,785.96 mi (6,092.92 km) |
| River Grove to Borehamwood | 3,943.00 mi (6,345.64 km) |
| River Grove to Boscombe | 3,912.50 mi (6,296.56 km) |
| River Grove to Boston | 3,910.62 mi (6,293.53 km) |
| River Grove to Bottesford | 3,868.68 mi (6,226.04 km) |
| River Grove to Bourne | 3,903.83 mi (6,282.61 km) |
| River Grove to Bournemouth | 3,911.10 mi (6,294.31 km) |
| River Grove to Bournville | 3,855.82 mi (6,205.35 km) |
| River Grove to Bovingdon | 3,930.87 mi (6,326.13 km) |
| River Grove to Bowdon | 3,811.24 mi (6,133.60 km) |
| River Grove to Boxley | 3,985.50 mi (6,414.04 km) |
| River Grove to Brackley | 3,897.96 mi (6,273.17 km) |
| River Grove to Bracknell | 3,932.58 mi (6,328.88 km) |
