| Harrow to Zilina | 853.63 mi (1,373.79 km) |
| Harrow to Zlate Moravce | 859.04 mi (1,382.48 km) |
| Harrow to Zvolen | 884.91 mi (1,424.12 km) |
| Harrow to Ajdovscina | 757.68 mi (1,219.37 km) |
| Harrow to Ankaran | 763.90 mi (1,229.38 km) |
| Harrow to Apace | 806.42 mi (1,297.81 km) |
| Harrow to Beltinci | 822.74 mi (1,324.08 km) |
| Harrow to Benedikt | 808.53 mi (1,301.20 km) |
| Harrow to Bistrica ob Sotli | 819.89 mi (1,319.49 km) |
| Harrow to Bled | 746.40 mi (1,201.21 km) |
| Harrow to Bohinjska Bistrica | 743.74 mi (1,196.93 km) |
| Harrow to Borovnica | 773.71 mi (1,245.16 km) |
| Harrow to Bovec | 725.55 mi (1,167.66 km) |
| Harrow to Braslovce | 786.18 mi (1,265.23 km) |
| Harrow to Brezice | 822.96 mi (1,324.43 km) |
