| Merthyr Tudful to Ramsgate | 207.89 mi (334.57 km) |
| Merthyr Tudful to Raunds | 127.69 mi (205.49 km) |
| Merthyr Tudful to Rawmarsh | 146.34 mi (235.51 km) |
| Merthyr Tudful to Rawtenstall | 142.59 mi (229.48 km) |
| Merthyr Tudful to Rayleigh | 171.01 mi (275.22 km) |
| Merthyr Tudful to Raynes Park | 137.11 mi (220.65 km) |
| Merthyr Tudful to Reading | 105.12 mi (169.18 km) |
| Merthyr Tudful to Redcar | 220.43 mi (354.74 km) |
| Merthyr Tudful to Reddish | 127.78 mi (205.64 km) |
| Merthyr Tudful to Redditch | 72.48 mi (116.65 km) |
| Merthyr Tudful to Redhill | 142.21 mi (228.86 km) |
| Merthyr Tudful to Redruth | 131.64 mi (211.85 km) |
| Merthyr Tudful to Reigate | 140.86 mi (226.69 km) |
| Merthyr Tudful to Renfrew | 288.65 mi (464.54 km) |
| Merthyr Tudful to Rhondda | 8.94 mi (14.39 km) |
