| Serpa to Kluczbork | 1,546.39 mi (2,488.67 km) |
| Serpa to Knurow | 1,543.13 mi (2,483.43 km) |
| Serpa to Kobylka | 1,701.65 mi (2,738.54 km) |
| Serpa to Kokoszki | 1,668.99 mi (2,685.99 km) |
| Serpa to Kolbuszowa | 1,670.98 mi (2,689.18 km) |
| Serpa to Kolno | 1,760.69 mi (2,833.55 km) |
| Serpa to Kolo | 1,600.01 mi (2,574.97 km) |
| Serpa to Kolobrzeg | 1,564.75 mi (2,518.22 km) |
| Serpa to Koluszki | 1,630.77 mi (2,624.47 km) |
| Serpa to Komorniki | 1,530.77 mi (2,463.53 km) |
| Serpa to Konin | 1,586.83 mi (2,553.76 km) |
| Serpa to Konskie | 1,639.56 mi (2,638.62 km) |
| Serpa to Konstancin-Jeziorna | 1,691.38 mi (2,722.02 km) |
| Serpa to Konstantynow Lodzki | 1,612.72 mi (2,595.43 km) |
| Serpa to Koronowo | 1,612.15 mi (2,594.51 km) |
