| Gretna to Nowy Dwor Mazowiecki | 5,389.52 mi (8,673.59 km) |
| Gretna to Nowy Sacz | 5,498.14 mi (8,848.40 km) |
| Gretna to Nowy Targ | 5,479.04 mi (8,817.67 km) |
| Gretna to Nowy Tomysl | 5,230.65 mi (8,417.92 km) |
| Gretna to Nysa | 5,341.26 mi (8,595.93 km) |
| Gretna to Oborniki | 5,243.44 mi (8,438.50 km) |
| Gretna to Oborniki Slaskie | 5,295.14 mi (8,521.71 km) |
| Gretna to Olawa | 5,323.11 mi (8,566.72 km) |
| Gretna to Olecko | 5,387.56 mi (8,670.44 km) |
| Gretna to Olesnica | 5,316.44 mi (8,555.99 km) |
| Gretna to Olesno | 5,366.39 mi (8,636.37 km) |
| Gretna to Olkusz | 5,431.00 mi (8,740.36 km) |
| Gretna to Olsztyn | 5,329.61 mi (8,577.17 km) |
| Gretna to Opalenica | 5,241.13 mi (8,434.78 km) |
| Gretna to Opoczno | 5,415.12 mi (8,714.79 km) |
