| Portalegre to Kluczbork | 1,474.80 mi (2,373.46 km) |
| Portalegre to Knurow | 1,474.02 mi (2,372.20 km) |
| Portalegre to Kobylka | 1,628.70 mi (2,621.14 km) |
| Portalegre to Kokoszki | 1,589.78 mi (2,558.50 km) |
| Portalegre to Kolbuszowa | 1,603.80 mi (2,581.06 km) |
| Portalegre to Kolno | 1,685.70 mi (2,712.87 km) |
| Portalegre to Kolo | 1,525.63 mi (2,455.27 km) |
| Portalegre to Kolobrzeg | 1,483.71 mi (2,387.81 km) |
| Portalegre to Koluszki | 1,558.34 mi (2,507.90 km) |
| Portalegre to Komorniki | 1,454.72 mi (2,341.15 km) |
| Portalegre to Konin | 1,512.14 mi (2,433.55 km) |
| Portalegre to Konskie | 1,568.96 mi (2,525.00 km) |
| Portalegre to Konstancin-Jeziorna | 1,618.99 mi (2,605.52 km) |
| Portalegre to Konstantynow Lodzki | 1,539.96 mi (2,478.33 km) |
| Portalegre to Koronowo | 1,534.69 mi (2,469.84 km) |
