| Boppard to McKeesport (Pennsylvania) | 4,056.36 mi (6,528.07 km) |
| Boppard to McKinleyville (California) | 5,491.89 mi (8,838.35 km) |
| Boppard to McKinney (Texas) | 5,057.48 mi (8,139.23 km) |
| Boppard to McLean (Virginia) | 4,014.73 mi (6,461.09 km) |
| Boppard to McMinnville (Oregon) | 5,213.45 mi (8,390.23 km) |
| Boppard to McMinnville (Tennessee) | 4,511.99 mi (7,261.35 km) |
| Boppard to McNair (Virginia) | 4,023.13 mi (6,474.61 km) |
| Boppard to McPherson (Kansas) | 4,823.09 mi (7,762.01 km) |
| Boppard to Mead Valley (California) | 5,725.75 mi (9,214.71 km) |
| Boppard to Meadow Woods (Florida) | 4,693.84 mi (7,554.00 km) |
| Boppard to Meadowbrook (Virginia) | 4,095.72 mi (6,591.43 km) |
| Boppard to Meadville (Pennsylvania) | 4,008.61 mi (6,451.23 km) |
| Boppard to Mebane (North Carolina) | 4,231.94 mi (6,810.66 km) |
| Boppard to Mechanicsville (Virginia) | 4,081.84 mi (6,569.09 km) |
| Boppard to Medford (Massachusetts) | 3,615.94 mi (5,819.30 km) |
