| Mercer Island to Barking | 4,787.61 mi (7,704.92 km) |
| Mercer Island to Barnet | 4,774.57 mi (7,683.92 km) |
| Mercer Island to Barnoldswick | 4,600.13 mi (7,403.20 km) |
| Mercer Island to Barnsley | 4,637.77 mi (7,463.76 km) |
| Mercer Island to Barnstaple | 4,700.52 mi (7,564.76 km) |
| Mercer Island to Barrhead | 4,444.23 mi (7,152.30 km) |
| Mercer Island to Barri | 4,705.08 mi (7,572.09 km) |
| Mercer Island to Barrow in Furness | 4,562.75 mi (7,343.04 km) |
| Mercer Island to Barton upon Humber | 4,657.21 mi (7,495.05 km) |
| Mercer Island to Barton upon Irwell | 4,619.07 mi (7,433.68 km) |
| Mercer Island to Barwell | 4,694.32 mi (7,554.78 km) |
| Mercer Island to Basford | 4,676.84 mi (7,526.65 km) |
| Mercer Island to Basildon | 4,796.13 mi (7,718.62 km) |
| Mercer Island to Basingstoke | 4,771.62 mi (7,679.18 km) |
| Mercer Island to Bath | 4,731.23 mi (7,614.19 km) |
