| Idrija to Ilawa | 579.49 mi (932.60 km) |
| Idrija to Imielin | 372.46 mi (599.41 km) |
| Idrija to Inowroclaw | 506.11 mi (814.51 km) |
| Idrija to Janow Lubelski | 503.86 mi (810.89 km) |
| Idrija to Jarocin | 441.01 mi (709.74 km) |
| Idrija to Jaroslaw | 486.28 mi (782.59 km) |
| Idrija to Jasien | 609.66 mi (981.15 km) |
| Idrija to Jaslo | 430.91 mi (693.49 km) |
| Idrija to Jastrzebie-Zdroj | 344.53 mi (554.46 km) |
| Idrija to Jawor | 362.60 mi (583.54 km) |
| Idrija to Jaworzno | 377.69 mi (607.83 km) |
| Idrija to Jedrzejow | 430.31 mi (692.52 km) |
| Idrija to Jelcz-Laskowice | 379.00 mi (609.93 km) |
| Idrija to Jelenia Gora | 347.50 mi (559.25 km) |
| Idrija to Jozefoslaw | 527.24 mi (848.52 km) |
