| Greenock to Ilawa | 977.93 mi (1,573.82 km) |
| Greenock to Imielin | 1,067.41 mi (1,717.84 km) |
| Greenock to Inowroclaw | 947.28 mi (1,524.51 km) |
| Greenock to Janow Lubelski | 1,169.50 mi (1,882.12 km) |
| Greenock to Jarocin | 941.31 mi (1,514.89 km) |
| Greenock to Jaroslaw | 1,203.33 mi (1,936.57 km) |
| Greenock to Jasien | 923.24 mi (1,485.82 km) |
| Greenock to Jaslo | 1,166.85 mi (1,877.87 km) |
| Greenock to Jastrzebie-Zdroj | 1,050.17 mi (1,690.09 km) |
| Greenock to Jawor | 921.27 mi (1,482.64 km) |
| Greenock to Jaworzno | 1,066.89 mi (1,716.99 km) |
| Greenock to Jedrzejow | 1,091.17 mi (1,756.06 km) |
| Greenock to Jelcz-Laskowice | 964.71 mi (1,552.56 km) |
| Greenock to Jelenia Gora | 908.83 mi (1,462.61 km) |
| Greenock to Jozefoslaw | 1,073.92 mi (1,728.31 km) |
