| Sleaford to Jozefow | 907.62 mi (1,460.67 km) |
| Sleaford to Kalisz | 782.49 mi (1,259.30 km) |
| Sleaford to Kamien Pomorski | 626.74 mi (1,008.64 km) |
| Sleaford to Kamienna Gora | 716.08 mi (1,152.42 km) |
| Sleaford to Karczew | 909.05 mi (1,462.98 km) |
| Sleaford to Kartuzy | 765.29 mi (1,231.62 km) |
| Sleaford to Katowice | 851.52 mi (1,370.38 km) |
| Sleaford to Kedzierzyn-Kozle | 815.71 mi (1,312.75 km) |
| Sleaford to Kepno | 786.78 mi (1,266.20 km) |
| Sleaford to Ketrzyn | 894.52 mi (1,439.59 km) |
| Sleaford to Kety | 868.88 mi (1,398.33 km) |
| Sleaford to Kielce | 905.08 mi (1,456.58 km) |
| Sleaford to Kielczow | 756.08 mi (1,216.79 km) |
| Sleaford to Klobuck | 833.53 mi (1,341.44 km) |
| Sleaford to Klodzko | 749.63 mi (1,206.42 km) |
