| Watertown Town to Karis | 3,898.99 mi (6,274.82 km) |
| Watertown Town to Karkkila | 3,900.75 mi (6,277.64 km) |
| Watertown Town to Kauhajoki | 3,781.72 mi (6,086.10 km) |
| Watertown Town to Kauhava | 3,787.15 mi (6,094.83 km) |
| Watertown Town to Kauniainen | 3,926.66 mi (6,319.34 km) |
| Watertown Town to Kemi | 3,749.46 mi (6,034.18 km) |
| Watertown Town to Kemijarvi | 3,791.75 mi (6,102.23 km) |
| Watertown Town to Kempele | 3,798.72 mi (6,113.44 km) |
| Watertown Town to Kerava | 3,931.59 mi (6,327.28 km) |
| Watertown Town to Keuruu | 3,859.70 mi (6,211.58 km) |
| Watertown Town to Kiiminki | 3,798.90 mi (6,113.75 km) |
| Watertown Town to Kirkkonummi | 3,920.39 mi (6,309.27 km) |
| Watertown Town to Kitee | 4,017.39 mi (6,465.37 km) |
| Watertown Town to Kiuruvesi | 3,868.12 mi (6,225.13 km) |
| Watertown Town to Kivisto | 3,926.49 mi (6,319.07 km) |
