| Barreiro to Krosno Odrzanskie | 1,481.24 mi (2,383.82 km) |
| Barreiro to Krotoszyn | 1,559.11 mi (2,509.15 km) |
| Barreiro to Kruszwica | 1,622.71 mi (2,611.50 km) |
| Barreiro to Krynica | 1,650.77 mi (2,656.65 km) |
| Barreiro to Krzeszowice | 1,608.80 mi (2,589.12 km) |
| Barreiro to Kudowa-Zdroj | 1,476.52 mi (2,376.23 km) |
| Barreiro to Kutno | 1,649.77 mi (2,655.04 km) |
| Barreiro to Kwidzyn | 1,677.44 mi (2,699.58 km) |
| Barreiro to Lancut | 1,717.75 mi (2,764.46 km) |
| Barreiro to Lapy | 1,805.99 mi (2,906.46 km) |
| Barreiro to Lask | 1,623.39 mi (2,612.60 km) |
| Barreiro to Laziska Gorne | 1,576.38 mi (2,536.93 km) |
| Barreiro to Lebork | 1,662.39 mi (2,675.36 km) |
| Barreiro to Leczna | 1,768.77 mi (2,846.56 km) |
| Barreiro to Leczyca | 1,638.28 mi (2,636.55 km) |
