| Clemson to Rhondda | 3,960.06 mi (6,373.10 km) |
| Clemson to Rhosllanerchrugog | 3,948.52 mi (6,354.54 km) |
| Clemson to Rhyl | 3,925.76 mi (6,317.91 km) |
| Clemson to Rhymney | 3,962.84 mi (6,377.57 km) |
| Clemson to Richmond | 4,091.23 mi (6,584.19 km) |
| Clemson to Rickmansworth | 4,080.55 mi (6,567.01 km) |
| Clemson to Ripley | 4,013.43 mi (6,459.00 km) |
| Clemson to Ripon | 3,987.70 mi (6,417.58 km) |
| Clemson to Risca | 3,973.66 mi (6,394.99 km) |
| Clemson to Rochdale | 3,972.66 mi (6,393.38 km) |
| Clemson to Rochester | 4,125.72 mi (6,639.70 km) |
| Clemson to Rock Ferry | 3,943.60 mi (6,346.62 km) |
| Clemson to Rogerstone | 3,975.53 mi (6,398.01 km) |
| Clemson to Romford | 4,108.19 mi (6,611.50 km) |
| Clemson to Romsey | 4,052.08 mi (6,521.19 km) |
