| Harlow to Kluczbork | 779.97 mi (1,255.24 km) |
| Harlow to Knurow | 811.79 mi (1,306.45 km) |
| Harlow to Kobylka | 892.89 mi (1,436.96 km) |
| Harlow to Kokoszki | 780.46 mi (1,256.03 km) |
| Harlow to Kolbuszowa | 942.98 mi (1,517.59 km) |
| Harlow to Kolno | 918.46 mi (1,478.12 km) |
| Harlow to Kolo | 785.76 mi (1,264.56 km) |
| Harlow to Kolobrzeg | 662.20 mi (1,065.70 km) |
| Harlow to Koluszki | 838.65 mi (1,349.67 km) |
| Harlow to Komorniki | 703.85 mi (1,132.73 km) |
| Harlow to Konin | 770.20 mi (1,239.51 km) |
| Harlow to Konskie | 870.95 mi (1,401.65 km) |
| Harlow to Konstancin-Jeziorna | 891.32 mi (1,434.44 km) |
| Harlow to Konstantynow Lodzki | 818.87 mi (1,317.84 km) |
| Harlow to Koronowo | 753.59 mi (1,212.78 km) |
