| Portlethen to Klaukkala | 983.66 mi (1,583.05 km) |
| Portlethen to Kokkola | 970.76 mi (1,562.28 km) |
| Portlethen to Kontiolahti | 1,161.28 mi (1,868.90 km) |
| Portlethen to Korsholm | 913.36 mi (1,469.91 km) |
| Portlethen to Kotka | 1,058.50 mi (1,703.50 km) |
| Portlethen to Kouvola | 1,050.85 mi (1,691.18 km) |
| Portlethen to Kuhmo | 1,163.45 mi (1,872.39 km) |
| Portlethen to Kuopio | 1,094.20 mi (1,760.94 km) |
| Portlethen to Kurikka | 926.63 mi (1,491.26 km) |
| Portlethen to Kuusamo | 1,182.91 mi (1,903.71 km) |
| Portlethen to Kuusankoski | 1,048.23 mi (1,686.96 km) |
| Portlethen to Lahti | 1,015.81 mi (1,634.79 km) |
| Portlethen to Laitila | 883.14 mi (1,421.27 km) |
| Portlethen to Lapinlahti | 1,090.17 mi (1,754.46 km) |
| Portlethen to Lappeenranta | 1,100.75 mi (1,771.49 km) |
