| Clemson to Racale | 5,233.57 mi (8,422.61 km) |
| Clemson to Racconigi | 4,607.93 mi (7,415.75 km) |
| Clemson to Raffadali | 5,121.88 mi (8,242.87 km) |
| Clemson to Ragusa | 5,195.30 mi (8,361.03 km) |
| Clemson to Ramacca | 5,176.88 mi (8,331.39 km) |
| Clemson to Randazzo | 5,169.92 mi (8,320.18 km) |
| Clemson to Rapallo | 4,689.00 mi (7,546.21 km) |
| Clemson to Ravanusa | 5,147.20 mi (8,283.62 km) |
| Clemson to Ravenna | 4,815.87 mi (7,750.40 km) |
| Clemson to Recanati | 4,908.95 mi (7,900.18 km) |
| Clemson to Recco | 4,684.81 mi (7,539.48 km) |
| Clemson to Reggello | 4,811.46 mi (7,743.30 km) |
| Clemson to Reggio di Calabria | 5,193.44 mi (8,358.04 km) |
| Clemson to Reggio Emilia | 4,738.71 mi (7,626.21 km) |
| Clemson to Reggiolo | 4,739.56 mi (7,627.59 km) |
