| Greenford to Nowy Dwor Mazowiecki | 895.43 mi (1,441.06 km) |
| Greenford to Nowy Sacz | 929.47 mi (1,495.84 km) |
| Greenford to Nowy Targ | 903.31 mi (1,453.74 km) |
| Greenford to Nowy Tomysl | 702.89 mi (1,131.19 km) |
| Greenford to Nysa | 770.43 mi (1,239.90 km) |
| Greenford to Oborniki | 731.06 mi (1,176.52 km) |
| Greenford to Oborniki Slaskie | 741.82 mi (1,193.84 km) |
| Greenford to Olawa | 762.82 mi (1,227.64 km) |
| Greenford to Olecko | 965.99 mi (1,554.62 km) |
| Greenford to Olesnica | 763.41 mi (1,228.59 km) |
| Greenford to Olesno | 811.42 mi (1,305.85 km) |
| Greenford to Olkusz | 869.20 mi (1,398.85 km) |
| Greenford to Olsztyn | 883.35 mi (1,421.62 km) |
| Greenford to Opalenica | 714.74 mi (1,150.26 km) |
| Greenford to Opoczno | 885.59 mi (1,425.22 km) |
