| San Marino to Mankato (Minnesota) | 1,460.11 mi (2,349.83 km) |
| San Marino to Manor (Texas) | 1,228.86 mi (1,977.66 km) |
| San Marino to Manorville (New York) | 2,499.45 mi (4,022.48 km) |
| San Marino to Mansfield (Ohio) | 1,990.83 mi (3,203.93 km) |
| San Marino to Mansfield (Texas) | 1,214.22 mi (1,954.10 km) |
| San Marino to Manteca (California) | 307.56 mi (494.98 km) |
| San Marino to Manville (New Jersey) | 2,407.00 mi (3,873.69 km) |
| San Marino to Maple Grove (Minnesota) | 1,506.86 mi (2,425.05 km) |
| San Marino to Maple Heights (Ohio) | 2,042.60 mi (3,287.25 km) |
| San Marino to Maple Valley (Washington) | 937.48 mi (1,508.72 km) |
| San Marino to Mapleton (Utah) | 548.69 mi (883.03 km) |
| San Marino to Maplewood (Minnesota) | 1,523.66 mi (2,452.10 km) |
| San Marino to Marana (Arizona) | 418.33 mi (673.24 km) |
| San Marino to Marco Island (Florida) | 2,237.78 mi (3,601.36 km) |
| San Marino to Margate (Florida) | 2,314.14 mi (3,724.24 km) |
