| Boom to Karkkila | 1,003.10 mi (1,614.33 km) |
| Boom to Kauhajoki | 1,027.41 mi (1,653.46 km) |
| Boom to Kauhava | 1,079.02 mi (1,736.52 km) |
| Boom to Kauniainen | 1,007.11 mi (1,620.78 km) |
| Boom to Kemi | 1,236.65 mi (1,990.20 km) |
| Boom to Kemijarvi | 1,341.24 mi (2,158.51 km) |
| Boom to Kempele | 1,217.43 mi (1,959.26 km) |
| Boom to Kerava | 1,024.28 mi (1,648.42 km) |
| Boom to Keuruu | 1,083.12 mi (1,743.12 km) |
| Boom to Kiiminki | 1,233.37 mi (1,984.92 km) |
| Boom to Kirkkonummi | 994.23 mi (1,600.06 km) |
| Boom to Kitee | 1,227.07 mi (1,974.77 km) |
| Boom to Kiuruvesi | 1,188.35 mi (1,912.47 km) |
| Boom to Kivisto | 1,014.10 mi (1,632.04 km) |
| Boom to Klaukkala | 1,013.28 mi (1,630.72 km) |
