| Barstow to Rosemont (California) | 348.71 mi (561.19 km) |
| Barstow to Rosemount (Minnesota) | 1,436.69 mi (2,312.13 km) |
| Barstow to Rosenberg (Texas) | 1,291.27 mi (2,078.10 km) |
| Barstow to Roseville (California) | 358.54 mi (577.01 km) |
| Barstow to Roseville (Michigan) | 1,899.64 mi (3,057.17 km) |
| Barstow to Roseville (Minnesota) | 1,439.12 mi (2,316.04 km) |
| Barstow to Rossmoor (California) | 94.96 mi (152.82 km) |
| Barstow to Rossville (Maryland) | 2,237.93 mi (3,601.59 km) |
| Barstow to Roswell (Georgia) | 1,855.39 mi (2,985.96 km) |
| Barstow to Roswell (New Mexico) | 722.92 mi (1,163.42 km) |
| Barstow to Round Lake (Illinois) | 1,636.53 mi (2,633.74 km) |
| Barstow to Round Lake Beach (Illinois) | 1,638.16 mi (2,636.36 km) |
| Barstow to Round Rock (Texas) | 1,164.10 mi (1,873.44 km) |
| Barstow to Rowland Heights (California) | 78.32 mi (126.05 km) |
| Barstow to Rowlett (Texas) | 1,181.28 mi (1,901.08 km) |
