| Barstow to Manerbio | 5,986.91 mi (9,635.01 km) |
| Barstow to Manfredonia | 6,369.50 mi (10,250.72 km) |
| Barstow to Maniago | 6,024.69 mi (9,695.81 km) |
| Barstow to Mantova | 6,018.79 mi (9,686.30 km) |
| Barstow to Maranello | 6,053.97 mi (9,742.92 km) |
| Barstow to Marano di Napoli | 6,354.83 mi (10,227.12 km) |
| Barstow to Marano Vicentino | 6,010.23 mi (9,672.54 km) |
| Barstow to Marcianise | 6,351.34 mi (10,221.50 km) |
| Barstow to Marcon | 6,044.72 mi (9,728.04 km) |
| Barstow to Mareno di Piave | 6,031.04 mi (9,706.01 km) |
| Barstow to Margherita di Savoia | 6,391.48 mi (10,286.09 km) |
| Barstow to Mariano Comense | 5,939.29 mi (9,558.36 km) |
| Barstow to Marigliano | 6,361.60 mi (10,238.01 km) |
| Barstow to Marino | 6,258.93 mi (10,072.78 km) |
| Barstow to Marostica | 6,014.69 mi (9,679.72 km) |
