| Poplar Bluff to Krosno Odrzanskie | 4,844.93 mi (7,797.16 km) |
| Poplar Bluff to Krotoszyn | 4,939.93 mi (7,950.04 km) |
| Poplar Bluff to Kruszwica | 4,929.40 mi (7,933.11 km) |
| Poplar Bluff to Krynica | 5,158.30 mi (8,301.49 km) |
| Poplar Bluff to Krzeszowice | 5,081.10 mi (8,177.24 km) |
| Poplar Bluff to Kudowa-Zdroj | 4,948.98 mi (7,964.61 km) |
| Poplar Bluff to Kutno | 4,982.74 mi (8,018.95 km) |
| Poplar Bluff to Kwidzyn | 4,905.45 mi (7,894.55 km) |
| Poplar Bluff to Lancut | 5,173.35 mi (8,325.71 km) |
| Poplar Bluff to Lapy | 5,065.47 mi (8,152.09 km) |
| Poplar Bluff to Lask | 5,001.98 mi (8,049.91 km) |
| Poplar Bluff to Laziska Gorne | 5,053.08 mi (8,132.14 km) |
| Poplar Bluff to Lebork | 4,833.60 mi (7,778.92 km) |
| Poplar Bluff to Leczna | 5,140.23 mi (8,272.41 km) |
| Poplar Bluff to Leczyca | 4,984.86 mi (8,022.36 km) |
