| Barstow to Marsala | 6,463.47 mi (10,401.95 km) |
| Barstow to Marsciano | 6,186.63 mi (9,956.42 km) |
| Barstow to Martano | 6,522.84 mi (10,497.50 km) |
| Barstow to Martellago | 6,040.76 mi (9,721.67 km) |
| Barstow to Martina Franca | 6,465.14 mi (10,404.64 km) |
| Barstow to Martinengo | 5,964.66 mi (9,599.19 km) |
| Barstow to Martinsicuro | 6,238.67 mi (10,040.17 km) |
| Barstow to Mascali | 6,560.05 mi (10,557.38 km) |
| Barstow to Mascalucia | 6,565.07 mi (10,565.46 km) |
| Barstow to Masera di Padova | 6,044.01 mi (9,726.90 km) |
| Barstow to Maserada sul Piave | 6,034.81 mi (9,712.09 km) |
| Barstow to Massa | 6,056.57 mi (9,747.10 km) |
| Barstow to Massa Lombarda | 6,088.50 mi (9,798.50 km) |
| Barstow to Massafra | 6,464.98 mi (10,404.38 km) |
| Barstow to Massalubrense | 6,375.62 mi (10,260.57 km) |
