| San Marino to Ramsey (New Jersey) | 2,428.06 mi (3,907.58 km) |
| San Marino to Rancho Cordova (California) | 353.65 mi (569.15 km) |
| San Marino to Rancho Cucamonga (California) | 31.26 mi (50.31 km) |
| San Marino to Rancho Mirage (California) | 99.78 mi (160.57 km) |
| San Marino to Rancho Palos Verdes (California) | 29.13 mi (46.88 km) |
| San Marino to Rancho San Diego (California) | 116.46 mi (187.43 km) |
| San Marino to Rancho Santa Margarita (California) | 44.94 mi (72.33 km) |
| San Marino to Randallstown (Maryland) | 2,295.48 mi (3,694.21 km) |
| San Marino to Rantoul (Illinois) | 1,694.01 mi (2,726.24 km) |
| San Marino to Rapid City (South Dakota) | 1,050.74 mi (1,691.01 km) |
| San Marino to Ravenna (Ohio) | 2,058.65 mi (3,313.08 km) |
| San Marino to Raymondville (Texas) | 1,320.04 mi (2,124.40 km) |
| San Marino to Raymore (Missouri) | 1,349.48 mi (2,171.77 km) |
| San Marino to Raytown (Missouri) | 1,350.73 mi (2,173.79 km) |
| San Marino to Reading (Ohio) | 1,888.18 mi (3,038.73 km) |
