| Potomac to Winsum | 3,885.55 mi (6,253.19 km) |
| Potomac to Winterswijk | 3,928.98 mi (6,323.08 km) |
| Potomac to Woensdrecht | 3,848.70 mi (6,193.88 km) |
| Potomac to Woerden | 3,853.72 mi (6,201.96 km) |
| Potomac to Wolvega | 3,877.35 mi (6,239.99 km) |
| Potomac to Woudenberg | 3,874.77 mi (6,235.85 km) |
| Potomac to Woudrichem | 3,865.11 mi (6,220.30 km) |
| Potomac to Zaandam | 3,842.96 mi (6,184.64 km) |
| Potomac to Zaandijk | 3,840.82 mi (6,181.19 km) |
| Potomac to Zaanstad | 3,839.83 mi (6,179.60 km) |
| Potomac to Zaltbommel | 3,875.46 mi (6,236.95 km) |
| Potomac to Zandvoort | 3,832.82 mi (6,168.32 km) |
| Potomac to Zeewolde | 3,873.61 mi (6,233.98 km) |
| Potomac to Zeist | 3,867.35 mi (6,223.89 km) |
| Potomac to Zevenaar | 3,904.72 mi (6,284.04 km) |
