| Round Rock to Billingham | 4,766.74 mi (7,671.32 km) |
| Round Rock to Bilston | 4,793.05 mi (7,713.67 km) |
| Round Rock to Binfield | 4,874.94 mi (7,845.45 km) |
| Round Rock to Bingham | 4,825.00 mi (7,765.08 km) |
| Round Rock to Bingley | 4,766.76 mi (7,671.36 km) |
| Round Rock to Birchington | 4,958.06 mi (7,979.22 km) |
| Round Rock to Birkenhead | 4,734.57 mi (7,619.56 km) |
| Round Rock to Birmingham | 4,802.00 mi (7,728.07 km) |
| Round Rock to Birstall | 4,776.49 mi (7,687.01 km) |
| Round Rock to Birstall | 4,826.55 mi (7,767.59 km) |
| Round Rock to Bishop Auckland | 4,750.38 mi (7,645.00 km) |
| Round Rock to Bishopbriggs | 4,625.24 mi (7,443.60 km) |
| Round Rock to Bishops Cleeve | 4,810.74 mi (7,742.14 km) |
| Round Rock to Bishops Stortford | 4,899.42 mi (7,884.86 km) |
| Round Rock to Bishopstoke | 4,867.33 mi (7,833.22 km) |
