| Ostrov to Kokkola | 1,007.35 mi (1,621.17 km) |
| Ostrov to Kontiolahti | 1,068.34 mi (1,719.33 km) |
| Ostrov to Korsholm | 942.86 mi (1,517.38 km) |
| Ostrov to Kotka | 887.74 mi (1,428.68 km) |
| Ostrov to Kouvola | 902.48 mi (1,452.40 km) |
| Ostrov to Kuhmo | 1,130.95 mi (1,820.08 km) |
| Ostrov to Kuopio | 1,029.25 mi (1,656.42 km) |
| Ostrov to Kurikka | 921.84 mi (1,483.56 km) |
| Ostrov to Kuusamo | 1,225.14 mi (1,971.68 km) |
| Ostrov to Kuusankoski | 902.73 mi (1,452.80 km) |
| Ostrov to Lahti | 885.38 mi (1,424.89 km) |
| Ostrov to Laitila | 805.27 mi (1,295.96 km) |
| Ostrov to Lapinlahti | 1,049.24 mi (1,688.59 km) |
| Ostrov to Lappeenranta | 946.67 mi (1,523.52 km) |
| Ostrov to Lapua | 952.37 mi (1,532.68 km) |
