| North Potomac to Karditsa | 4,993.36 mi (8,036.04 km) |
| North Potomac to Kastoria | 4,918.70 mi (7,915.89 km) |
| North Potomac to Katerini | 4,981.29 mi (8,016.62 km) |
| North Potomac to Keratsini | 5,124.83 mi (8,247.61 km) |
| North Potomac to Kerkyra | 4,896.79 mi (7,880.63 km) |
| North Potomac to Kiato | 5,085.48 mi (8,184.28 km) |
| North Potomac to Kifisia | 5,128.53 mi (8,253.57 km) |
| North Potomac to Kilkis | 4,967.30 mi (7,994.10 km) |
| North Potomac to Komotini | 5,068.37 mi (8,156.75 km) |
| North Potomac to Korinthos | 5,096.18 mi (8,201.51 km) |
| North Potomac to Koropi | 5,138.71 mi (8,269.96 km) |
| North Potomac to Korydallos | 5,125.56 mi (8,248.80 km) |
| North Potomac to Kos | 5,328.08 mi (8,574.72 km) |
| North Potomac to Kozani | 4,949.49 mi (7,965.44 km) |
| North Potomac to Lagos | 5,053.63 mi (8,133.03 km) |
