| Grimbergen to Imielin | 652.68 mi (1,050.39 km) |
| Grimbergen to Inowroclaw | 604.89 mi (973.48 km) |
| Grimbergen to Janow Lubelski | 785.26 mi (1,263.75 km) |
| Grimbergen to Jarocin | 568.49 mi (914.90 km) |
| Grimbergen to Jaroslaw | 804.91 mi (1,295.38 km) |
| Grimbergen to Jasien | 637.95 mi (1,026.68 km) |
| Grimbergen to Jaslo | 756.25 mi (1,217.07 km) |
| Grimbergen to Jastrzebie-Zdroj | 627.54 mi (1,009.92 km) |
| Grimbergen to Jawor | 513.42 mi (826.26 km) |
| Grimbergen to Jaworzno | 654.12 mi (1,052.70 km) |
| Grimbergen to Jedrzejow | 694.27 mi (1,117.33 km) |
| Grimbergen to Jelcz-Laskowice | 562.61 mi (905.43 km) |
| Grimbergen to Jelenia Gora | 493.95 mi (794.94 km) |
| Grimbergen to Jozefoslaw | 719.35 mi (1,157.68 km) |
| Grimbergen to Jozefow | 727.28 mi (1,170.44 km) |
