| Placentia to Robertsville (New Jersey) | 2,416.53 mi (3,889.03 km) |
| Placentia to Robinson (Texas) | 1,215.59 mi (1,956.30 km) |
| Placentia to Robstown (Texas) | 1,266.59 mi (2,038.38 km) |
| Placentia to Rochester (Michigan) | 1,963.82 mi (3,160.47 km) |
| Placentia to Rochester (Minnesota) | 1,524.26 mi (2,453.06 km) |
| Placentia to Rochester (New Hampshire) | 2,578.10 mi (4,149.06 km) |
| Placentia to Rochester (New York) | 2,243.98 mi (3,611.34 km) |
| Placentia to Rochester Hills (Michigan) | 1,961.81 mi (3,157.23 km) |
| Placentia to Rock Hill (South Carolina) | 2,088.82 mi (3,361.63 km) |
| Placentia to Rock Island (Illinois) | 1,573.02 mi (2,531.53 km) |
| Placentia to Rock Springs (Wyoming) | 711.03 mi (1,144.29 km) |
| Placentia to Rockford (Illinois) | 1,659.95 mi (2,671.43 km) |
| Placentia to Rockledge (Florida) | 2,217.21 mi (3,568.26 km) |
| Placentia to Rocklin (California) | 389.21 mi (626.38 km) |
| Placentia to Rockport (Texas) | 1,293.35 mi (2,081.45 km) |
