| Barstow to Rockville (Maryland) | 2,203.41 mi (3,546.04 km) |
| Barstow to Rockville Centre (New York) | 2,380.09 mi (3,830.38 km) |
| Barstow to Rockwall (Texas) | 1,187.58 mi (1,911.22 km) |
| Barstow to Rocky Mount (North Carolina) | 2,195.99 mi (3,534.10 km) |
| Barstow to Rocky Point (New York) | 2,415.18 mi (3,886.86 km) |
| Barstow to Rocky River (Ohio) | 1,951.14 mi (3,140.06 km) |
| Barstow to Roessleville (New York) | 2,364.46 mi (3,805.23 km) |
| Barstow to Rogers (Arkansas) | 1,287.21 mi (2,071.57 km) |
| Barstow to Rogers (Minnesota) | 1,424.17 mi (2,291.98 km) |
| Barstow to Rohnert Park (California) | 394.90 mi (635.53 km) |
| Barstow to Rolla (Missouri) | 1,417.68 mi (2,281.54 km) |
| Barstow to Rolling Meadows (Illinois) | 1,637.90 mi (2,635.95 km) |
| Barstow to Roma (Texas) | 1,218.29 mi (1,960.65 km) |
| Barstow to Rome (Georgia) | 1,805.55 mi (2,905.75 km) |
| Barstow to Rome (New York) | 2,278.43 mi (3,666.78 km) |
