| Gretna to Ilawa | 5,305.25 mi (8,537.98 km) |
| Gretna to Imielin | 5,423.80 mi (8,728.76 km) |
| Gretna to Inowroclaw | 5,289.67 mi (8,512.90 km) |
| Gretna to Janow Lubelski | 5,517.14 mi (8,878.98 km) |
| Gretna to Jarocin | 5,292.73 mi (8,517.82 km) |
| Gretna to Jaroslaw | 5,554.69 mi (8,939.41 km) |
| Gretna to Jasien | 5,243.16 mi (8,438.05 km) |
| Gretna to Jaslo | 5,521.69 mi (8,886.31 km) |
| Gretna to Jastrzebie-Zdroj | 5,407.21 mi (8,702.06 km) |
| Gretna to Jawor | 5,278.11 mi (8,494.30 km) |
| Gretna to Jaworzno | 5,423.07 mi (8,727.58 km) |
| Gretna to Jedrzejow | 5,444.32 mi (8,761.79 km) |
| Gretna to Jelcz-Laskowice | 5,320.69 mi (8,562.82 km) |
| Gretna to Jelenia Gora | 5,265.95 mi (8,474.73 km) |
| Gretna to Jozefoslaw | 5,413.97 mi (8,712.94 km) |
