| Harrow to Recica | 780.18 mi (1,255.58 km) |
| Harrow to Ribnica | 795.56 mi (1,280.33 km) |
| Harrow to Ribnica | 786.31 mi (1,265.44 km) |
| Harrow to Rogaska Slatina | 812.32 mi (1,307.30 km) |
| Harrow to Rogasovci | 807.66 mi (1,299.80 km) |
| Harrow to Rogatec | 815.28 mi (1,312.06 km) |
| Harrow to Ruse | 796.03 mi (1,281.08 km) |
| Harrow to Salovci | 817.78 mi (1,316.09 km) |
| Harrow to Selnica ob Dravi | 794.73 mi (1,278.99 km) |
| Harrow to Semic | 816.52 mi (1,314.07 km) |
| Harrow to Sempeter pri Gorici | 745.44 mi (1,199.67 km) |
| Harrow to Sencur | 763.29 mi (1,228.40 km) |
| Harrow to Sentilj | 796.26 mi (1,281.45 km) |
| Harrow to Sentjernej | 815.39 mi (1,312.24 km) |
| Harrow to Sentjur | 803.14 mi (1,292.52 km) |
