| Barstow to Romeoville (Illinois) | 1,630.05 mi (2,623.31 km) |
| Barstow to Romulus (Michigan) | 1,876.24 mi (3,019.52 km) |
| Barstow to Ronkonkoma (New York) | 2,406.12 mi (3,872.28 km) |
| Barstow to Roosevelt (New York) | 2,382.86 mi (3,834.84 km) |
| Barstow to Rosamond (California) | 66.24 mi (106.60 km) |
| Barstow to Rosaryville (Maryland) | 2,223.06 mi (3,577.67 km) |
| Barstow to Roscoe (Illinois) | 1,591.99 mi (2,562.06 km) |
| Barstow to Rose Hill (Virginia) | 2,207.82 mi (3,553.14 km) |
| Barstow to Roseburg (Oregon) | 668.75 mi (1,076.25 km) |
| Barstow to Rosedale (California) | 127.21 mi (204.73 km) |
| Barstow to Rosedale (Maryland) | 2,236.42 mi (3,599.18 km) |
| Barstow to Roselle (Illinois) | 1,633.90 mi (2,629.52 km) |
| Barstow to Roselle (New Jersey) | 2,347.67 mi (3,778.21 km) |
| Barstow to Roselle Park (New Jersey) | 2,347.25 mi (3,777.54 km) |
| Barstow to Rosemead (California) | 80.69 mi (129.86 km) |
