| Watertown Town to Kluczbork | 4,013.91 mi (6,459.77 km) |
| Watertown Town to Knurow | 4,058.03 mi (6,530.76 km) |
| Watertown Town to Kobylka | 4,077.93 mi (6,562.79 km) |
| Watertown Town to Kokoszki | 3,912.32 mi (6,296.27 km) |
| Watertown Town to Kolbuszowa | 4,173.56 mi (6,716.70 km) |
| Watertown Town to Kolno | 4,066.50 mi (6,544.40 km) |
| Watertown Town to Kolo | 3,988.36 mi (6,418.65 km) |
| Watertown Town to Kolobrzeg | 3,812.99 mi (6,136.41 km) |
| Watertown Town to Koluszki | 4,046.89 mi (6,512.85 km) |
| Watertown Town to Komorniki | 3,914.27 mi (6,299.40 km) |
| Watertown Town to Konin | 3,974.22 mi (6,395.90 km) |
| Watertown Town to Konskie | 4,089.00 mi (6,580.61 km) |
| Watertown Town to Konstancin-Jeziorna | 4,083.69 mi (6,572.06 km) |
| Watertown Town to Konstantynow Lodzki | 4,029.59 mi (6,484.99 km) |
| Watertown Town to Koronowo | 3,925.76 mi (6,317.90 km) |
