| Pottstown to Melzo | 4,113.94 mi (6,620.74 km) |
| Pottstown to Mendicino | 4,632.56 mi (7,455.39 km) |
| Pottstown to Menfi | 4,550.61 mi (7,323.49 km) |
| Pottstown to Mentana | 4,373.40 mi (7,038.31 km) |
| Pottstown to Merano | 4,149.24 mi (6,677.55 km) |
| Pottstown to Merate | 4,108.14 mi (6,611.42 km) |
| Pottstown to Mercato San Severino | 4,511.62 mi (7,260.74 km) |
| Pottstown to Mercogliano | 4,505.33 mi (7,250.63 km) |
| Pottstown to Mesagne | 4,652.29 mi (7,487.13 km) |
| Pottstown to Messina | 4,645.41 mi (7,476.07 km) |
| Pottstown to Mestre | 4,233.95 mi (6,813.88 km) |
| Pottstown to Mestrino | 4,215.44 mi (6,784.09 km) |
| Pottstown to Milan | 4,105.32 mi (6,606.87 km) |
| Pottstown to Milazzo | 4,630.24 mi (7,451.66 km) |
| Pottstown to Minerbio | 4,231.20 mi (6,809.46 km) |
