| San Marino to Missouri City (Texas) | 1,358.98 mi (2,187.07 km) |
| San Marino to Mitchell (South Dakota) | 1,262.02 mi (2,031.02 km) |
| San Marino to Mitchellville (Maryland) | 2,297.15 mi (3,696.91 km) |
| San Marino to Moberly (Missouri) | 1,461.98 mi (2,352.83 km) |
| San Marino to Mobile (Alabama) | 1,759.67 mi (2,831.92 km) |
| San Marino to Modesto (California) | 291.77 mi (469.56 km) |
| San Marino to Mokena (Illinois) | 1,717.57 mi (2,764.16 km) |
| San Marino to Moline (Illinois) | 1,583.31 mi (2,548.09 km) |
| San Marino to Moncks Corner (South Carolina) | 2,179.72 mi (3,507.92 km) |
| San Marino to Monfort Heights (Ohio) | 1,878.84 mi (3,023.70 km) |
| San Marino to Monmouth (Oregon) | 789.40 mi (1,270.42 km) |
| San Marino to Monroe (Georgia) | 1,961.87 mi (3,157.33 km) |
| San Marino to Monroe (Louisiana) | 1,503.20 mi (2,419.17 km) |
| San Marino to Monroe (Michigan) | 1,950.74 mi (3,139.41 km) |
| San Marino to Monroe (North Carolina) | 2,124.88 mi (3,419.67 km) |
