| Potomac to Bonham (Texas) | 1,119.64 mi (1,801.88 km) |
| Potomac to Bonita (California) | 2,255.45 mi (3,629.80 km) |
| Potomac to Bonita Springs (Florida) | 914.09 mi (1,471.09 km) |
| Potomac to Bonney Lake (Washington) | 2,304.20 mi (3,708.25 km) |
| Potomac to Boone (Iowa) | 899.27 mi (1,447.23 km) |
| Potomac to Boone (North Carolina) | 312.07 mi (502.23 km) |
| Potomac to Borger (Texas) | 1,345.71 mi (2,165.71 km) |
| Potomac to Bossier City (Louisiana) | 1,024.52 mi (1,648.80 km) |
| Potomac to Boston (Massachusetts) | 393.08 mi (632.60 km) |
| Potomac to Bostonia (California) | 2,247.00 mi (3,616.19 km) |
| Potomac to Bothell (Washington) | 2,304.27 mi (3,708.37 km) |
| Potomac to Bothell East (Washington) | 2,303.28 mi (3,706.77 km) |
| Potomac to Bothell West (Washington) | 2,305.86 mi (3,710.93 km) |
| Potomac to Boulder (Colorado) | 1,490.92 mi (2,399.40 km) |
| Potomac to Boulder City (Nevada) | 2,067.02 mi (3,326.55 km) |
