| North Potomac to Massarosa | 4,322.91 mi (6,957.05 km) |
| North Potomac to Matelica | 4,460.06 mi (7,177.77 km) |
| North Potomac to Matera | 4,711.39 mi (7,582.25 km) |
| North Potomac to Matino | 4,802.80 mi (7,729.37 km) |
| North Potomac to Mazzarino | 4,732.22 mi (7,615.77 km) |
| North Potomac to Meda | 4,213.43 mi (6,780.86 km) |
| North Potomac to Medesano | 4,284.79 mi (6,895.70 km) |
| North Potomac to Medicina | 4,358.23 mi (7,013.89 km) |
| North Potomac to Meldola | 4,388.10 mi (7,061.97 km) |
| North Potomac to Melegnano | 4,230.08 mi (6,807.65 km) |
| North Potomac to Melendugno | 4,802.40 mi (7,728.71 km) |
| North Potomac to Melfi | 4,657.23 mi (7,495.08 km) |
| North Potomac to Melilli | 4,778.63 mi (7,690.47 km) |
| North Potomac to Melito di Napoli | 4,598.04 mi (7,399.82 km) |
| North Potomac to Melito di Porto Salvo | 4,780.61 mi (7,693.65 km) |
