| Potomac to Karditsa | 4,994.88 mi (8,038.48 km) |
| Potomac to Kastoria | 4,920.29 mi (7,918.44 km) |
| Potomac to Katerini | 4,982.92 mi (8,019.23 km) |
| Potomac to Keratsini | 5,126.31 mi (8,250.00 km) |
| Potomac to Kerkyra | 4,898.23 mi (7,882.94 km) |
| Potomac to Kiato | 5,086.92 mi (8,186.60 km) |
| Potomac to Kifisia | 5,130.03 mi (8,255.99 km) |
| Potomac to Kilkis | 4,969.00 mi (7,996.84 km) |
| Potomac to Komotini | 5,070.20 mi (8,159.70 km) |
| Potomac to Korinthos | 5,097.63 mi (8,203.84 km) |
| Potomac to Koropi | 5,140.20 mi (8,272.36 km) |
| Potomac to Korydallos | 5,127.05 mi (8,251.19 km) |
| Potomac to Kos | 5,329.66 mi (8,577.26 km) |
| Potomac to Kozani | 4,951.08 mi (7,968.00 km) |
| Potomac to Lagos | 5,055.44 mi (8,135.95 km) |
