| Middle River to Legionowo | 4,404.82 mi (7,088.88 km) |
| Middle River to Legnica | 4,271.19 mi (6,873.82 km) |
| Middle River to Leszno | 4,265.84 mi (6,865.21 km) |
| Middle River to Lezajsk | 4,539.87 mi (7,306.21 km) |
| Middle River to Libiaz | 4,429.21 mi (7,128.12 km) |
| Middle River to Lidzbark | 4,336.36 mi (6,978.69 km) |
| Middle River to Lidzbark Warminski | 4,333.53 mi (6,974.14 km) |
| Middle River to Limanowa | 4,485.74 mi (7,219.10 km) |
| Middle River to Lipno | 4,327.02 mi (6,963.67 km) |
| Middle River to Lobez | 4,172.26 mi (6,714.60 km) |
| Middle River to Lodz | 4,374.88 mi (7,040.69 km) |
| Middle River to Lomianki | 4,407.21 mi (7,092.72 km) |
| Middle River to Lomza | 4,419.27 mi (7,112.13 km) |
| Middle River to Lowicz | 4,381.03 mi (7,050.59 km) |
| Middle River to Lubaczow | 4,569.56 mi (7,353.99 km) |
