| Kastamonu to Klaukkala | 1,367.90 mi (2,201.42 km) |
| Kastamonu to Kokkola | 1,609.81 mi (2,590.74 km) |
| Kastamonu to Kontiolahti | 1,486.65 mi (2,392.53 km) |
| Kastamonu to Korsholm | 1,580.44 mi (2,543.47 km) |
| Kastamonu to Kotka | 1,350.47 mi (2,173.37 km) |
| Kastamonu to Kouvola | 1,379.34 mi (2,219.84 km) |
| Kastamonu to Kuhmo | 1,581.01 mi (2,544.39 km) |
| Kastamonu to Kuopio | 1,507.36 mi (2,425.87 km) |
| Kastamonu to Kurikka | 1,539.96 mi (2,478.33 km) |
| Kastamonu to Kuusamo | 1,708.34 mi (2,749.30 km) |
| Kastamonu to Kuusankoski | 1,382.75 mi (2,225.32 km) |
| Kastamonu to Lahti | 1,397.18 mi (2,248.55 km) |
| Kastamonu to Laitila | 1,440.54 mi (2,318.32 km) |
| Kastamonu to Lapinlahti | 1,541.35 mi (2,480.56 km) |
| Kastamonu to Lappeenranta | 1,380.63 mi (2,221.91 km) |
