| Boom to Jakobstad | 1,097.22 mi (1,765.80 km) |
| Boom to Jamsa | 1,080.16 mi (1,738.35 km) |
| Boom to Janakkala | 1,029.53 mi (1,656.86 km) |
| Boom to Jarvenpaa | 1,026.61 mi (1,652.16 km) |
| Boom to Joensuu | 1,232.08 mi (1,982.85 km) |
| Boom to Joutseno | 1,149.09 mi (1,849.28 km) |
| Boom to Jyvaskyla | 1,109.66 mi (1,785.82 km) |
| Boom to Jyvaskylan Maalaiskunta | 1,111.49 mi (1,788.77 km) |
| Boom to Kaarina | 945.36 mi (1,521.41 km) |
| Boom to Kajaani | 1,239.08 mi (1,994.11 km) |
| Boom to Kalajoki | 1,153.23 mi (1,855.95 km) |
| Boom to Kangasala | 1,034.17 mi (1,664.34 km) |
| Boom to Kankaanpaa | 1,004.56 mi (1,616.68 km) |
| Boom to Karhula | 1,083.14 mi (1,743.15 km) |
| Boom to Karis | 970.24 mi (1,561.46 km) |
