| Clemson to Rosolini | 5,209.55 mi (8,383.96 km) |
| Clemson to Rossano | 5,183.56 mi (8,342.14 km) |
| Clemson to Rottofreno | 4,680.21 mi (7,532.07 km) |
| Clemson to Rovato | 4,683.39 mi (7,537.19 km) |
| Clemson to Roverbella | 4,726.02 mi (7,605.79 km) |
| Clemson to Rovereto | 4,718.11 mi (7,593.07 km) |
| Clemson to Rovigo | 4,776.15 mi (7,686.47 km) |
| Clemson to Rozzano | 4,652.66 mi (7,487.73 km) |
| Clemson to Rubano | 4,764.03 mi (7,666.96 km) |
| Clemson to Rubiera | 4,746.83 mi (7,639.29 km) |
| Clemson to Ruffano | 5,239.55 mi (8,432.23 km) |
| Clemson to Russi | 4,809.95 mi (7,740.86 km) |
| Clemson to Rutigliano | 5,144.22 mi (8,278.83 km) |
| Clemson to Ruvo di Puglia | 5,119.10 mi (8,238.39 km) |
| Clemson to Sabaudia | 4,959.21 mi (7,981.07 km) |
