| Potomac to Westland (Michigan) | 396.39 mi (637.92 km) |
| Potomac to Westminster (California) | 2,279.12 mi (3,667.90 km) |
| Potomac to Westminster (Colorado) | 1,482.03 mi (2,385.10 km) |
| Potomac to Westminster (Maryland) | 40.34 mi (64.92 km) |
| Potomac to Westmont (California) | 2,290.92 mi (3,686.88 km) |
| Potomac to Westmont (Illinois) | 598.33 mi (962.92 km) |
| Potomac to Westmont (New Jersey) | 129.76 mi (208.82 km) |
| Potomac to Weston (Florida) | 911.44 mi (1,466.82 km) |
| Potomac to Weston (Wisconsin) | 752.30 mi (1,210.71 km) |
| Potomac to Westphalia (Maryland) | 23.15 mi (37.26 km) |
| Potomac to Westview (Florida) | 924.37 mi (1,487.63 km) |
| Potomac to Westwood (New Jersey) | 215.92 mi (347.49 km) |
| Potomac to Westwood Lakes (Florida) | 936.63 mi (1,507.36 km) |
| Potomac to Wheat Ridge (Colorado) | 1,485.08 mi (2,390.00 km) |
| Potomac to Wheaton (Illinois) | 606.11 mi (975.44 km) |
