| Hennef to McKeesport (Pennsylvania) | 4,027.13 mi (6,481.03 km) |
| Hennef to McKinleyville (California) | 5,452.93 mi (8,775.65 km) |
| Hennef to McKinney (Texas) | 5,025.85 mi (8,088.32 km) |
| Hennef to McLean (Virginia) | 3,986.92 mi (6,416.32 km) |
| Hennef to McMinnville (Oregon) | 5,174.20 mi (8,327.07 km) |
| Hennef to McMinnville (Tennessee) | 4,482.83 mi (7,214.42 km) |
| Hennef to McNair (Virginia) | 3,995.25 mi (6,429.73 km) |
| Hennef to McPherson (Kansas) | 4,789.70 mi (7,708.27 km) |
| Hennef to Mead Valley (California) | 5,688.79 mi (9,155.23 km) |
| Hennef to Meadow Woods (Florida) | 4,669.14 mi (7,514.25 km) |
| Hennef to Meadowbrook (Virginia) | 4,068.50 mi (6,547.62 km) |
| Hennef to Meadville (Pennsylvania) | 3,978.73 mi (6,403.15 km) |
| Hennef to Mebane (North Carolina) | 4,204.72 mi (6,766.85 km) |
| Hennef to Mechanicsville (Virginia) | 4,054.57 mi (6,525.20 km) |
| Hennef to Medford (Massachusetts) | 3,588.30 mi (5,774.81 km) |
