| Round Rock to Bispham | 4,721.37 mi (7,598.31 km) |
| Round Rock to Blackburn | 4,745.18 mi (7,636.64 km) |
| Round Rock to Blackpool | 4,722.02 mi (7,599.35 km) |
| Round Rock to Blairgowrie | 4,639.88 mi (7,467.16 km) |
| Round Rock to Blandford Forum | 4,837.33 mi (7,784.92 km) |
| Round Rock to Blaydon | 4,740.66 mi (7,629.36 km) |
| Round Rock to Bletchley | 4,860.95 mi (7,822.95 km) |
| Round Rock to Bloxwich | 4,794.37 mi (7,715.79 km) |
| Round Rock to Blunsdon Saint Andrew | 4,830.80 mi (7,774.42 km) |
| Round Rock to Blyth | 4,743.71 mi (7,634.26 km) |
| Round Rock to Bo'ness | 4,644.69 mi (7,474.90 km) |
| Round Rock to Bodmin | 4,745.36 mi (7,636.92 km) |
| Round Rock to Bognor Regis | 4,898.49 mi (7,883.36 km) |
| Round Rock to Bolsover | 4,804.47 mi (7,732.04 km) |
| Round Rock to Bolton | 4,751.77 mi (7,647.23 km) |
