| Cities | Distance |
|---|---|
| Harrow to Ramsgate | 77.77 mi (125.16 km) |
| Harrow to Raunds | 53.23 mi (85.66 km) |
| Harrow to Rawmarsh | 136.49 mi (219.66 km) |
| Harrow to Rawtenstall | 167.35 mi (269.32 km) |
| Harrow to Rayleigh | 40.84 mi (65.73 km) |
| Harrow to Raynes Park | 13.39 mi (21.55 km) |
| Harrow to Reading | 28.39 mi (45.69 km) |
| Harrow to Redcar | 211.79 mi (340.84 km) |
| Harrow to Reddish | 149.14 mi (240.02 km) |
| Harrow to Redditch | 83.77 mi (134.82 km) |
| Harrow to Redhill | 24.94 mi (40.14 km) |
| Harrow to Redruth | 232.03 mi (373.42 km) |
| Harrow to Reigate | 24.70 mi (39.75 km) |
| Harrow to Renfrew | 339.49 mi (546.35 km) |
| Harrow to Rhondda | 131.81 mi (212.13 km) |