| Serpa to Koscian | 1,522.52 mi (2,450.25 km) |
| Serpa to Koscielisko | 1,569.51 mi (2,525.87 km) |
| Serpa to Koscierzyna | 1,642.89 mi (2,643.97 km) |
| Serpa to Kostrzyn | 1,554.25 mi (2,501.32 km) |
| Serpa to Kostrzyn nad Odra | 1,470.57 mi (2,366.66 km) |
| Serpa to Koszalin | 1,585.62 mi (2,551.81 km) |
| Serpa to Kowary | 1,447.91 mi (2,330.19 km) |
| Serpa to Kozienice | 1,695.52 mi (2,728.67 km) |
| Serpa to Kozuchow | 1,472.29 mi (2,369.42 km) |
| Serpa to Kozy | 1,553.00 mi (2,499.31 km) |
| Serpa to Krakow | 1,590.48 mi (2,559.63 km) |
| Serpa to Krapkowice | 1,521.30 mi (2,448.29 km) |
| Serpa to Krasnik | 1,705.08 mi (2,744.06 km) |
| Serpa to Krasnystaw | 1,746.27 mi (2,810.35 km) |
| Serpa to Krosno | 1,657.73 mi (2,667.86 km) |
