| Opwijk to Knurow | 637.09 mi (1,025.30 km) |
| Opwijk to Kobylka | 733.85 mi (1,181.02 km) |
| Opwijk to Kokoszki | 642.26 mi (1,033.62 km) |
| Opwijk to Kolbuszowa | 770.75 mi (1,240.40 km) |
| Opwijk to Kolno | 768.45 mi (1,236.70 km) |
| Opwijk to Kolo | 625.13 mi (1,006.06 km) |
| Opwijk to Kolobrzeg | 526.51 mi (847.34 km) |
| Opwijk to Koluszki | 674.65 mi (1,085.75 km) |
| Opwijk to Komorniki | 543.73 mi (875.05 km) |
| Opwijk to Konin | 609.67 mi (981.17 km) |
| Opwijk to Konskie | 703.34 mi (1,131.92 km) |
| Opwijk to Konstancin-Jeziorna | 730.32 mi (1,175.34 km) |
| Opwijk to Konstantynow Lodzki | 654.70 mi (1,053.63 km) |
| Opwijk to Koronowo | 604.16 mi (972.29 km) |
| Opwijk to Koscian | 540.75 mi (870.26 km) |
