| Clay to Ayr | 4,040.60 mi (6,502.72 km) |
| Clay to Bacup | 4,167.94 mi (6,707.65 km) |
| Clay to Baguley | 4,171.33 mi (6,713.10 km) |
| Clay to Baildon | 4,181.80 mi (6,729.95 km) |
| Clay to Bailleston | 4,053.03 mi (6,522.71 km) |
| Clay to Balderton | 4,237.83 mi (6,820.12 km) |
| Clay to Baldock | 4,285.41 mi (6,896.70 km) |
| Clay to Balham | 4,299.87 mi (6,919.97 km) |
| Clay to Bamber Bridge | 4,149.43 mi (6,677.87 km) |
| Clay to Banbridge | 3,997.35 mi (6,433.11 km) |
| Clay to Banbury | 4,237.85 mi (6,820.16 km) |
| Clay to Bangor | 4,014.79 mi (6,461.18 km) |
| Clay to Bangor | 4,101.75 mi (6,601.13 km) |
| Clay to Banstead | 4,300.68 mi (6,921.28 km) |
| Clay to Bargoed | 4,169.00 mi (6,709.36 km) |
