| Greenbelt to Melzo | 4,218.71 mi (6,789.36 km) |
| Greenbelt to Mendicino | 4,735.54 mi (7,621.11 km) |
| Greenbelt to Menfi | 4,651.54 mi (7,485.94 km) |
| Greenbelt to Mentana | 4,476.97 mi (7,204.99 km) |
| Greenbelt to Merano | 4,254.93 mi (6,847.66 km) |
| Greenbelt to Merate | 4,213.03 mi (6,780.22 km) |
| Greenbelt to Mercato San Severino | 4,615.04 mi (7,427.19 km) |
| Greenbelt to Mercogliano | 4,608.83 mi (7,417.20 km) |
| Greenbelt to Mesagne | 4,756.41 mi (7,654.70 km) |
| Greenbelt to Messina | 4,747.57 mi (7,640.47 km) |
| Greenbelt to Mestre | 4,339.27 mi (6,983.38 km) |
| Greenbelt to Mestrino | 4,320.65 mi (6,953.42 km) |
| Greenbelt to Milan | 4,210.03 mi (6,775.39 km) |
| Greenbelt to Milazzo | 4,732.31 mi (7,615.92 km) |
| Greenbelt to Minerbio | 4,335.92 mi (6,978.00 km) |
