| Hemel Hempstead to Ilawa | 846.05 mi (1,361.59 km) |
| Hemel Hempstead to Imielin | 861.62 mi (1,386.64 km) |
| Hemel Hempstead to Inowroclaw | 792.87 mi (1,276.01 km) |
| Hemel Hempstead to Janow Lubelski | 988.58 mi (1,590.96 km) |
| Hemel Hempstead to Jarocin | 764.96 mi (1,231.08 km) |
| Hemel Hempstead to Jaroslaw | 1,011.79 mi (1,628.32 km) |
| Hemel Hempstead to Jasien | 807.69 mi (1,299.86 km) |
| Hemel Hempstead to Jaslo | 965.33 mi (1,553.56 km) |
| Hemel Hempstead to Jastrzebie-Zdroj | 837.90 mi (1,348.47 km) |
| Hemel Hempstead to Jawor | 718.58 mi (1,156.45 km) |
| Hemel Hempstead to Jaworzno | 862.63 mi (1,388.27 km) |
| Hemel Hempstead to Jedrzejow | 899.57 mi (1,447.72 km) |
| Hemel Hempstead to Jelcz-Laskowice | 767.20 mi (1,234.69 km) |
| Hemel Hempstead to Jelenia Gora | 700.57 mi (1,127.46 km) |
| Hemel Hempstead to Jozefoslaw | 913.68 mi (1,470.43 km) |
