| Boulder to Katwijk | 4,802.06 mi (7,728.17 km) |
| Boulder to Kerkrade | 4,915.76 mi (7,911.15 km) |
| Boulder to Klazienaveen | 4,860.43 mi (7,822.10 km) |
| Boulder to Koog aan de Zaan | 4,802.72 mi (7,729.24 km) |
| Boulder to Krimpen aan den IJssel | 4,820.02 mi (7,757.08 km) |
| Boulder to Krommenie | 4,800.17 mi (7,725.13 km) |
| Boulder to Kudelstaart | 4,811.36 mi (7,743.13 km) |
| Boulder to Landgraaf | 4,912.65 mi (7,906.15 km) |
| Boulder to Landsmeer | 4,807.98 mi (7,737.69 km) |
| Boulder to Langedijk | 4,792.51 mi (7,712.80 km) |
| Boulder to Laren | 4,826.35 mi (7,767.27 km) |
| Boulder to Leek | 4,821.94 mi (7,760.16 km) |
| Boulder to Leerdam | 4,837.63 mi (7,785.42 km) |
| Boulder to Leeuwarden | 4,801.55 mi (7,727.34 km) |
| Boulder to Leiden | 4,806.22 mi (7,734.86 km) |
