| Ridderkerk to Karis | 924.22 mi (1,487.38 km) |
| Ridderkerk to Karkkila | 956.51 mi (1,539.36 km) |
| Ridderkerk to Kauhajoki | 976.99 mi (1,572.32 km) |
| Ridderkerk to Kauhava | 1,028.25 mi (1,654.81 km) |
| Ridderkerk to Kauniainen | 961.38 mi (1,547.19 km) |
| Ridderkerk to Kemi | 1,184.14 mi (1,905.68 km) |
| Ridderkerk to Kemijarvi | 1,288.79 mi (2,074.11 km) |
| Ridderkerk to Kempele | 1,165.82 mi (1,876.20 km) |
| Ridderkerk to Kerava | 978.39 mi (1,574.57 km) |
| Ridderkerk to Keuruu | 1,034.08 mi (1,664.19 km) |
| Ridderkerk to Kiiminki | 1,181.66 mi (1,901.70 km) |
| Ridderkerk to Kirkkonummi | 948.52 mi (1,526.50 km) |
| Ridderkerk to Kitee | 1,180.42 mi (1,899.70 km) |
| Ridderkerk to Kiuruvesi | 1,138.36 mi (1,832.02 km) |
| Ridderkerk to Kivisto | 968.23 mi (1,558.22 km) |
