| Ostrov to Karkkila | 831.08 mi (1,337.49 km) |
| Ostrov to Kauhajoki | 907.27 mi (1,460.11 km) |
| Ostrov to Kauhava | 961.16 mi (1,546.84 km) |
| Ostrov to Kauniainen | 824.69 mi (1,327.21 km) |
| Ostrov to Kemi | 1,143.48 mi (1,840.25 km) |
| Ostrov to Kemijarvi | 1,241.50 mi (1,998.00 km) |
| Ostrov to Kempele | 1,106.51 mi (1,780.76 km) |
| Ostrov to Kerava | 842.44 mi (1,355.78 km) |
| Ostrov to Keuruu | 937.83 mi (1,509.28 km) |
| Ostrov to Kiiminki | 1,123.61 mi (1,808.28 km) |
| Ostrov to Kirkkonummi | 812.48 mi (1,307.57 km) |
| Ostrov to Kitee | 1,042.40 mi (1,677.58 km) |
| Ostrov to Kiuruvesi | 1,051.03 mi (1,691.46 km) |
| Ostrov to Kivisto | 832.84 mi (1,340.33 km) |
| Ostrov to Klaukkala | 833.92 mi (1,342.06 km) |
