| River Falls to Barking | 3,999.82 mi (6,437.08 km) |
| River Falls to Barnet | 3,985.82 mi (6,414.56 km) |
| River Falls to Barnoldswick | 3,832.39 mi (6,167.64 km) |
| River Falls to Barnsley | 3,870.09 mi (6,228.30 km) |
| River Falls to Barnstaple | 3,865.55 mi (6,221.00 km) |
| River Falls to Barrhead | 3,692.24 mi (5,942.09 km) |
| River Falls to Barri | 3,883.05 mi (6,249.17 km) |
| River Falls to Barrow in Furness | 3,789.22 mi (6,098.15 km) |
| River Falls to Barton upon Humber | 3,901.38 mi (6,278.67 km) |
| River Falls to Barton upon Irwell | 3,841.88 mi (6,182.91 km) |
| River Falls to Barwell | 3,910.50 mi (6,293.33 km) |
| River Falls to Basford | 3,901.85 mi (6,279.41 km) |
| River Falls to Basildon | 4,013.00 mi (6,458.30 km) |
| River Falls to Basingstoke | 3,967.92 mi (6,385.75 km) |
| River Falls to Bath | 3,917.33 mi (6,304.33 km) |
