| Constanta to Krosno Odrzanskie | 825.52 mi (1,328.54 km) |
| Constanta to Krotoszyn | 732.35 mi (1,178.61 km) |
| Constanta to Kruszwica | 752.78 mi (1,211.49 km) |
| Constanta to Krynica | 512.60 mi (824.95 km) |
| Constanta to Krzeszowice | 589.81 mi (949.21 km) |
| Constanta to Kudowa-Zdroj | 723.02 mi (1,163.58 km) |
| Constanta to Kutno | 700.79 mi (1,127.81 km) |
| Constanta to Kwidzyn | 792.74 mi (1,275.80 km) |
| Constanta to Lancut | 506.28 mi (814.78 km) |
| Constanta to Lapy | 662.94 mi (1,066.89 km) |
| Constanta to Lask | 674.83 mi (1,086.03 km) |
| Constanta to Laziska Gorne | 617.28 mi (993.41 km) |
| Constanta to Lebork | 866.49 mi (1,394.49 km) |
| Constanta to Leczna | 560.23 mi (901.60 km) |
| Constanta to Leczyca | 696.01 mi (1,120.12 km) |
