| Potomac to Burley (Idaho) | 1,915.27 mi (3,082.34 km) |
| Potomac to Burlingame (California) | 2,425.95 mi (3,904.18 km) |
| Potomac to Burlington (Iowa) | 747.77 mi (1,203.42 km) |
| Potomac to Burlington (Kentucky) | 403.97 mi (650.13 km) |
| Potomac to Burlington (North Carolina) | 238.16 mi (383.29 km) |
| Potomac to Burlington (Vermont) | 429.69 mi (691.51 km) |
| Potomac to Burlington (Wisconsin) | 631.19 mi (1,015.81 km) |
| Potomac to Burnsville (Minnesota) | 915.64 mi (1,473.58 km) |
| Potomac to Burr Ridge (Illinois) | 594.80 mi (957.24 km) |
| Potomac to Burton (Michigan) | 433.26 mi (697.26 km) |
| Potomac to Burtonsville (Maryland) | 15.58 mi (25.07 km) |
| Potomac to Butler (Pennsylvania) | 191.77 mi (308.62 km) |
| Potomac to Butte (Montana) | 1,852.64 mi (2,981.53 km) |
| Potomac to Byram (Mississippi) | 872.29 mi (1,403.81 km) |
| Potomac to Cabot (Arkansas) | 863.56 mi (1,389.76 km) |
