| North Potomac to Katwijk | 3,830.25 mi (6,164.19 km) |
| North Potomac to Kerkrade | 3,930.62 mi (6,325.73 km) |
| North Potomac to Klazienaveen | 3,916.83 mi (6,303.54 km) |
| North Potomac to Koog aan de Zaan | 3,838.67 mi (6,177.74 km) |
| North Potomac to Krimpen aan den IJssel | 3,843.96 mi (6,186.25 km) |
| North Potomac to Krommenie | 3,836.53 mi (6,174.30 km) |
| North Potomac to Kudelstaart | 3,842.48 mi (6,183.87 km) |
| North Potomac to Landgraaf | 3,928.01 mi (6,321.53 km) |
| North Potomac to Landsmeer | 3,844.08 mi (6,186.46 km) |
| North Potomac to Langedijk | 3,832.78 mi (6,168.27 km) |
| North Potomac to Laren | 3,861.16 mi (6,213.94 km) |
| North Potomac to Leek | 3,882.41 mi (6,248.13 km) |
| North Potomac to Leerdam | 3,864.86 mi (6,219.89 km) |
| North Potomac to Leeuwarden | 3,858.46 mi (6,209.60 km) |
| North Potomac to Leiden | 3,834.14 mi (6,170.46 km) |
