| Potomac to Brighton | 3,681.18 mi (5,924.29 km) |
| Potomac to Brimington | 3,578.87 mi (5,759.63 km) |
| Potomac to Brislington | 3,568.88 mi (5,743.56 km) |
| Potomac to Bristol | 3,566.23 mi (5,739.29 km) |
| Potomac to Brixham | 3,549.73 mi (5,712.73 km) |
| Potomac to Brixton | 3,667.74 mi (5,902.66 km) |
| Potomac to Broadstairs | 3,733.34 mi (6,008.23 km) |
| Potomac to Broadstone | 3,605.61 mi (5,802.67 km) |
| Potomac to Broadwater | 3,671.25 mi (5,908.31 km) |
| Potomac to Brockworth | 3,576.50 mi (5,755.82 km) |
| Potomac to Bromborough | 3,514.36 mi (5,655.82 km) |
| Potomac to Bromley | 3,674.51 mi (5,913.55 km) |
| Potomac to Bromsgrove | 3,570.46 mi (5,746.09 km) |
| Potomac to Broughton Astley | 3,600.02 mi (5,793.67 km) |
| Potomac to Broughty Ferry | 3,465.37 mi (5,576.98 km) |
