| Clayton to Racale | 1,331.19 mi (2,142.34 km) |
| Clayton to Racconigi | 754.40 mi (1,214.09 km) |
| Clayton to Raffadali | 1,346.77 mi (2,167.42 km) |
| Clayton to Ragusa | 1,407.29 mi (2,264.81 km) |
| Clayton to Ramacca | 1,378.82 mi (2,219.00 km) |
| Clayton to Randazzo | 1,355.74 mi (2,181.85 km) |
| Clayton to Rapallo | 819.46 mi (1,318.79 km) |
| Clayton to Ravanusa | 1,366.41 mi (2,199.02 km) |
| Clayton to Ravenna | 902.85 mi (1,453.00 km) |
| Clayton to Recanati | 999.65 mi (1,608.78 km) |
| Clayton to Recco | 816.23 mi (1,313.60 km) |
| Clayton to Reggello | 922.59 mi (1,484.77 km) |
| Clayton to Reggio di Calabria | 1,361.76 mi (2,191.54 km) |
| Clayton to Reggio Emilia | 839.63 mi (1,351.25 km) |
| Clayton to Reggiolo | 833.28 mi (1,341.03 km) |
