| Irun to Karis | 1,569.43 mi (2,525.75 km) |
| Irun to Karkkila | 1,603.55 mi (2,580.67 km) |
| Irun to Kauhajoki | 1,634.60 mi (2,630.64 km) |
| Irun to Kauhava | 1,686.46 mi (2,714.09 km) |
| Irun to Kauniainen | 1,605.32 mi (2,583.51 km) |
| Irun to Kemi | 1,843.68 mi (2,967.12 km) |
| Irun to Kemijarvi | 1,948.35 mi (3,135.57 km) |
| Irun to Kempele | 1,825.08 mi (2,937.19 km) |
| Irun to Kerava | 1,622.84 mi (2,611.70 km) |
| Irun to Keuruu | 1,688.53 mi (2,717.43 km) |
| Irun to Kiiminki | 1,841.01 mi (2,962.81 km) |
| Irun to Kirkkonummi | 1,592.44 mi (2,562.79 km) |
| Irun to Kitee | 1,826.91 mi (2,940.12 km) |
| Irun to Kiuruvesi | 1,795.03 mi (2,888.83 km) |
| Irun to Kivisto | 1,612.67 mi (2,595.35 km) |
