| Janakkala to Imielin | 774.12 mi (1,245.83 km) |
| Janakkala to Inowroclaw | 610.30 mi (982.19 km) |
| Janakkala to Janow Lubelski | 709.96 mi (1,142.57 km) |
| Janakkala to Jarocin | 675.07 mi (1,086.42 km) |
| Janakkala to Jaroslaw | 756.84 mi (1,218.02 km) |
| Janakkala to Jasien | 506.70 mi (815.45 km) |
| Janakkala to Jaslo | 781.51 mi (1,257.72 km) |
| Janakkala to Jastrzebie-Zdroj | 793.35 mi (1,276.77 km) |
| Janakkala to Jawor | 754.51 mi (1,214.27 km) |
| Janakkala to Jaworzno | 768.79 mi (1,237.25 km) |
| Janakkala to Jedrzejow | 729.95 mi (1,174.74 km) |
| Janakkala to Jelcz-Laskowice | 738.08 mi (1,187.82 km) |
| Janakkala to Jelenia Gora | 771.63 mi (1,241.83 km) |
| Janakkala to Jozefoslaw | 624.21 mi (1,004.56 km) |
| Janakkala to Jozefow | 620.47 mi (998.55 km) |
