| Morro Bay to Rockville (Maryland) | 2,394.38 mi (3,853.38 km) |
| Morro Bay to Rockville Centre (New York) | 2,564.76 mi (4,127.58 km) |
| Morro Bay to Rockwall (Texas) | 1,402.57 mi (2,257.21 km) |
| Morro Bay to Rocky Mount (North Carolina) | 2,396.47 mi (3,856.74 km) |
| Morro Bay to Rocky Point (New York) | 2,598.73 mi (4,182.26 km) |
| Morro Bay to Rocky River (Ohio) | 2,133.97 mi (3,434.30 km) |
| Morro Bay to Roessleville (New York) | 2,541.84 mi (4,090.70 km) |
| Morro Bay to Rogers (Arkansas) | 1,491.86 mi (2,400.92 km) |
| Morro Bay to Rogers (Minnesota) | 1,579.27 mi (2,541.59 km) |
| Morro Bay to Rohnert Park (California) | 229.83 mi (369.87 km) |
| Morro Bay to Rolla (Missouri) | 1,615.49 mi (2,599.87 km) |
| Morro Bay to Rolling Meadows (Illinois) | 1,816.83 mi (2,923.90 km) |
| Morro Bay to Roma (Texas) | 1,430.79 mi (2,302.64 km) |
| Morro Bay to Rome (Georgia) | 2,013.34 mi (3,240.16 km) |
| Morro Bay to Rome (New York) | 2,453.94 mi (3,949.24 km) |
