| Boulder to Zierikzee | 4,809.86 mi (7,740.72 km) |
| Boulder to Zoetermeer | 4,810.67 mi (7,742.02 km) |
| Boulder to Zoeterwoude | 4,807.72 mi (7,737.28 km) |
| Boulder to Zuidhorn | 4,818.71 mi (7,754.97 km) |
| Boulder to Zuidlaren | 4,834.66 mi (7,780.64 km) |
| Boulder to Zundert | 4,842.72 mi (7,793.61 km) |
| Boulder to Zutphen | 4,862.26 mi (7,825.05 km) |
| Boulder to Zwijndrecht | 4,826.64 mi (7,767.72 km) |
| Boulder to Zwolle | 4,842.24 mi (7,792.83 km) |
| Boulder to Alesund | 4,409.82 mi (7,096.92 km) |
| Boulder to Alta | 4,411.07 mi (7,098.93 km) |
| Boulder to Arendal | 4,653.53 mi (7,489.14 km) |
| Boulder to As | 4,652.76 mi (7,487.90 km) |
| Boulder to Asker | 4,635.87 mi (7,460.71 km) |
| Boulder to Askim | 4,666.23 mi (7,509.57 km) |
