| Belfast to Kluczbork | 1,033.73 mi (1,663.63 km) |
| Belfast to Knurow | 1,074.40 mi (1,729.07 km) |
| Belfast to Kobylka | 1,119.65 mi (1,801.91 km) |
| Belfast to Kokoszki | 975.65 mi (1,570.16 km) |
| Belfast to Kolbuszowa | 1,196.41 mi (1,925.44 km) |
| Belfast to Kolno | 1,127.02 mi (1,813.76 km) |
| Belfast to Kolo | 1,019.97 mi (1,641.48 km) |
| Belfast to Kolobrzeg | 862.39 mi (1,387.88 km) |
| Belfast to Koluszki | 1,077.23 mi (1,733.64 km) |
| Belfast to Komorniki | 941.09 mi (1,514.53 km) |
| Belfast to Konin | 1,004.92 mi (1,617.26 km) |
| Belfast to Konskie | 1,115.87 mi (1,795.82 km) |
| Belfast to Konstancin-Jeziorna | 1,122.00 mi (1,805.69 km) |
| Belfast to Konstantynow Lodzki | 1,058.55 mi (1,703.57 km) |
| Belfast to Koronowo | 969.45 mi (1,560.18 km) |
