| San Marino to Merriam (Kansas) | 1,338.73 mi (2,154.48 km) |
| San Marino to Merrick (New York) | 2,460.71 mi (3,960.12 km) |
| San Marino to Merrifield (Virginia) | 2,274.57 mi (3,660.57 km) |
| San Marino to Merrillville (Indiana) | 1,745.73 mi (2,809.48 km) |
| San Marino to Merritt Island (Florida) | 2,235.82 mi (3,598.20 km) |
| San Marino to Mesa (Arizona) | 370.66 mi (596.51 km) |
| San Marino to Mesquite (Nevada) | 290.60 mi (467.68 km) |
| San Marino to Mesquite (Texas) | 1,242.39 mi (1,999.43 km) |
| San Marino to Metairie (Louisiana) | 1,655.08 mi (2,663.60 km) |
| San Marino to Methuen Town (Massachusetts) | 2,574.07 mi (4,142.56 km) |
| San Marino to Metuchen (New Jersey) | 2,418.86 mi (3,892.78 km) |
| San Marino to Mexico (Missouri) | 1,490.24 mi (2,398.31 km) |
| San Marino to Miami (Florida) | 2,326.81 mi (3,744.64 km) |
| San Marino to Miami (Oklahoma) | 1,317.83 mi (2,120.85 km) |
| San Marino to Miami Beach (Florida) | 2,329.92 mi (3,749.65 km) |
