| Boulder to Winsum | 4,818.68 mi (7,754.92 km) |
| Boulder to Winterswijk | 4,886.84 mi (7,864.62 km) |
| Boulder to Woensdrecht | 4,833.93 mi (7,779.46 km) |
| Boulder to Woerden | 4,822.42 mi (7,760.94 km) |
| Boulder to Wolvega | 4,822.95 mi (7,761.78 km) |
| Boulder to Woudenberg | 4,839.73 mi (7,788.79 km) |
| Boulder to Woudrichem | 4,838.08 mi (7,786.14 km) |
| Boulder to Zaandam | 4,805.28 mi (7,733.35 km) |
| Boulder to Zaandijk | 4,802.72 mi (7,729.24 km) |
| Boulder to Zaanstad | 4,801.84 mi (7,727.81 km) |
| Boulder to Zaltbommel | 4,846.98 mi (7,800.46 km) |
| Boulder to Zandvoort | 4,798.50 mi (7,722.45 km) |
| Boulder to Zeewolde | 4,832.85 mi (7,777.72 km) |
| Boulder to Zeist | 4,833.46 mi (7,778.70 km) |
| Boulder to Zevenaar | 4,868.22 mi (7,834.64 km) |
