| Placentia to River Ridge (Louisiana) | 1,638.09 mi (2,636.24 km) |
| Placentia to Riverbank (California) | 317.02 mi (510.19 km) |
| Placentia to Riverdale (Georgia) | 1,913.52 mi (3,079.51 km) |
| Placentia to Riverdale (Illinois) | 1,725.26 mi (2,776.54 km) |
| Placentia to Riverside (California) | 26.70 mi (42.96 km) |
| Placentia to Riverside (Ohio) | 1,897.75 mi (3,054.13 km) |
| Placentia to Riverton (Utah) | 561.31 mi (903.34 km) |
| Placentia to Riverton (Wyoming) | 812.24 mi (1,307.17 km) |
| Placentia to Riverview (Florida) | 2,139.03 mi (3,442.43 km) |
| Placentia to Riverview (Michigan) | 1,956.36 mi (3,148.46 km) |
| Placentia to Riviera Beach (Florida) | 2,292.51 mi (3,689.44 km) |
| Placentia to Riviera Beach (Maryland) | 2,303.58 mi (3,707.26 km) |
| Placentia to Roanoke (Virginia) | 2,128.28 mi (3,425.14 km) |
| Placentia to Roanoke Rapids (North Carolina) | 2,261.58 mi (3,639.67 km) |
| Placentia to Robbinsdale (Minnesota) | 1,509.13 mi (2,428.71 km) |
