| Middle River to Krosno Odrzanskie | 4,204.15 mi (6,765.92 km) |
| Middle River to Krotoszyn | 4,303.17 mi (6,925.28 km) |
| Middle River to Kruszwica | 4,302.52 mi (6,924.23 km) |
| Middle River to Krynica | 4,516.42 mi (7,268.47 km) |
| Middle River to Krzeszowice | 4,440.00 mi (7,145.49 km) |
| Middle River to Kudowa-Zdroj | 4,299.99 mi (6,920.17 km) |
| Middle River to Kutno | 4,355.67 mi (7,009.78 km) |
| Middle River to Kwidzyn | 4,288.28 mi (6,901.33 km) |
| Middle River to Lancut | 4,539.97 mi (7,306.38 km) |
| Middle River to Lapy | 4,454.87 mi (7,169.41 km) |
| Middle River to Lask | 4,369.56 mi (7,032.13 km) |
| Middle River to Laziska Gorne | 4,409.71 mi (7,096.75 km) |
| Middle River to Lebork | 4,219.31 mi (6,790.33 km) |
| Middle River to Leczna | 4,517.50 mi (7,270.22 km) |
| Middle River to Leczyca | 4,355.96 mi (7,010.24 km) |
