| Watertown Town to Krosno Odrzanskie | 3,861.53 mi (6,214.53 km) |
| Watertown Town to Krotoszyn | 3,960.85 mi (6,374.37 km) |
| Watertown Town to Kruszwica | 3,961.23 mi (6,374.98 km) |
| Watertown Town to Krynica | 4,173.48 mi (6,716.56 km) |
| Watertown Town to Krzeszowice | 4,097.18 mi (6,593.77 km) |
| Watertown Town to Kudowa-Zdroj | 3,956.62 mi (6,367.57 km) |
| Watertown Town to Kutno | 4,014.31 mi (6,460.41 km) |
| Watertown Town to Kwidzyn | 3,948.16 mi (6,353.96 km) |
| Watertown Town to Lancut | 4,197.79 mi (6,755.69 km) |
| Watertown Town to Lapy | 4,115.37 mi (6,623.06 km) |
| Watertown Town to Lask | 4,027.62 mi (6,481.83 km) |
| Watertown Town to Laziska Gorne | 4,066.72 mi (6,544.75 km) |
| Watertown Town to Lebork | 3,879.65 mi (6,243.69 km) |
| Watertown Town to Leczna | 4,176.46 mi (6,721.37 km) |
| Watertown Town to Leczyca | 4,014.40 mi (6,460.55 km) |
