| Castel Gandolfo to Imielin | 659.12 mi (1,060.76 km) |
| Castel Gandolfo to Inowroclaw | 806.63 mi (1,298.15 km) |
| Castel Gandolfo to Janow Lubelski | 774.42 mi (1,246.31 km) |
| Castel Gandolfo to Jarocin | 741.92 mi (1,194.00 km) |
| Castel Gandolfo to Jaroslaw | 746.50 mi (1,201.37 km) |
| Castel Gandolfo to Jasien | 911.09 mi (1,466.26 km) |
| Castel Gandolfo to Jaslo | 696.43 mi (1,120.79 km) |
| Castel Gandolfo to Jastrzebie-Zdroj | 634.12 mi (1,020.52 km) |
| Castel Gandolfo to Jawor | 664.44 mi (1,069.31 km) |
| Castel Gandolfo to Jaworzno | 664.55 mi (1,069.49 km) |
| Castel Gandolfo to Jedrzejow | 713.83 mi (1,148.80 km) |
| Castel Gandolfo to Jelcz-Laskowice | 678.95 mi (1,092.67 km) |
| Castel Gandolfo to Jelenia Gora | 649.36 mi (1,045.05 km) |
| Castel Gandolfo to Jozefoslaw | 816.46 mi (1,313.97 km) |
| Castel Gandolfo to Jozefow | 822.63 mi (1,323.89 km) |
