| Zachary to Rosemead (California) | 1,583.81 mi (2,548.90 km) |
| Zachary to Rosemont (California) | 1,791.94 mi (2,883.84 km) |
| Zachary to Rosemount (Minnesota) | 978.46 mi (1,574.68 km) |
| Zachary to Rosenberg (Texas) | 288.98 mi (465.07 km) |
| Zachary to Roseville (California) | 1,792.36 mi (2,884.53 km) |
| Zachary to Roseville (Michigan) | 935.83 mi (1,506.08 km) |
| Zachary to Roseville (Minnesota) | 997.42 mi (1,605.19 km) |
| Zachary to Rossmoor (California) | 1,583.45 mi (2,548.32 km) |
| Zachary to Rossville (Maryland) | 1,023.22 mi (1,646.72 km) |
| Zachary to Roswell (Georgia) | 460.77 mi (741.54 km) |
| Zachary to Roswell (New Mexico) | 804.43 mi (1,294.60 km) |
| Zachary to Round Lake (Illinois) | 824.47 mi (1,326.85 km) |
| Zachary to Round Lake Beach (Illinois) | 827.15 mi (1,331.16 km) |
| Zachary to Round Rock (Texas) | 386.69 mi (622.32 km) |
| Zachary to Rowland Heights (California) | 1,572.75 mi (2,531.10 km) |
