| Forest Grove to Karditsa | 6,183.72 mi (9,951.73 km) |
| Forest Grove to Kastoria | 6,097.12 mi (9,812.37 km) |
| Forest Grove to Katerini | 6,139.03 mi (9,879.81 km) |
| Forest Grove to Keratsini | 6,308.70 mi (10,152.87 km) |
| Forest Grove to Kerkyra | 6,123.74 mi (9,855.20 km) |
| Forest Grove to Kiato | 6,287.56 mi (10,118.86 km) |
| Forest Grove to Kifisia | 6,305.44 mi (10,147.62 km) |
| Forest Grove to Kilkis | 6,101.10 mi (9,818.77 km) |
| Forest Grove to Komotini | 6,144.01 mi (9,887.83 km) |
| Forest Grove to Korinthos | 6,295.92 mi (10,132.30 km) |
| Forest Grove to Koropi | 6,318.32 mi (10,168.35 km) |
| Forest Grove to Korydallos | 6,308.34 mi (10,152.29 km) |
| Forest Grove to Kos | 6,453.13 mi (10,385.31 km) |
| Forest Grove to Kozani | 6,121.83 mi (9,852.14 km) |
| Forest Grove to Lagos | 6,138.65 mi (9,879.20 km) |
