| Potomac to Bollullos par del Condado | 3,737.80 mi (6,015.40 km) |
| Potomac to Bormujos | 3,760.22 mi (6,051.49 km) |
| Potomac to Brenes | 3,764.73 mi (6,058.74 km) |
| Potomac to Brunete | 3,773.79 mi (6,073.33 km) |
| Potomac to Bueu | 3,493.70 mi (5,622.57 km) |
| Potomac to Bullas | 3,955.71 mi (6,366.10 km) |
| Potomac to Bunol | 3,956.23 mi (6,366.94 km) |
| Potomac to Burela de Cabo | 3,526.90 mi (5,676.00 km) |
| Potomac to Burgos | 3,734.06 mi (6,009.40 km) |
| Potomac to Burjasot | 3,971.96 mi (6,392.24 km) |
| Potomac to Burriana | 3,975.27 mi (6,397.57 km) |
| Potomac to Cabanaquinta | 3,625.70 mi (5,834.99 km) |
| Potomac to Cabanillas del Campo | 3,803.34 mi (6,120.88 km) |
| Potomac to Cabra | 3,838.08 mi (6,176.80 km) |
| Potomac to Caceres | 3,684.66 mi (5,929.89 km) |
