| Niagara Falls to Katwijk | 3,715.22 mi (5,979.07 km) |
| Niagara Falls to Kerkrade | 3,820.09 mi (6,147.84 km) |
| Niagara Falls to Klazienaveen | 3,795.44 mi (6,108.16 km) |
| Niagara Falls to Koog aan de Zaan | 3,721.71 mi (5,989.51 km) |
| Niagara Falls to Krimpen aan den IJssel | 3,730.18 mi (6,003.15 km) |
| Niagara Falls to Krommenie | 3,719.44 mi (5,985.86 km) |
| Niagara Falls to Kudelstaart | 3,726.81 mi (5,997.72 km) |
| Niagara Falls to Landgraaf | 3,817.32 mi (6,143.39 km) |
| Niagara Falls to Landsmeer | 3,727.14 mi (5,998.25 km) |
| Niagara Falls to Langedijk | 3,714.65 mi (5,978.15 km) |
| Niagara Falls to Laren | 3,744.72 mi (6,026.55 km) |
| Niagara Falls to Leek | 3,759.64 mi (6,050.56 km) |
| Niagara Falls to Leerdam | 3,750.43 mi (6,035.73 km) |
| Niagara Falls to Leeuwarden | 3,736.35 mi (6,013.07 km) |
| Niagara Falls to Leiden | 3,719.23 mi (5,985.52 km) |
