| Barstow to Melzo | 5,957.12 mi (9,587.05 km) |
| Barstow to Mendicino | 6,509.29 mi (10,475.68 km) |
| Barstow to Menfi | 6,492.12 mi (10,448.06 km) |
| Barstow to Mentana | 6,245.00 mi (10,050.35 km) |
| Barstow to Merano | 5,950.57 mi (9,576.52 km) |
| Barstow to Merate | 5,947.28 mi (9,571.22 km) |
| Barstow to Mercato San Severino | 6,379.94 mi (10,267.52 km) |
| Barstow to Mercogliano | 6,371.54 mi (10,254.00 km) |
| Barstow to Mesagne | 6,486.93 mi (10,439.71 km) |
| Barstow to Messina | 6,547.44 mi (10,537.08 km) |
| Barstow to Mestre | 6,046.24 mi (9,730.48 km) |
| Barstow to Mestrino | 6,033.83 mi (9,710.51 km) |
| Barstow to Milan | 5,951.56 mi (9,578.10 km) |
| Barstow to Milazzo | 6,535.69 mi (10,518.18 km) |
| Barstow to Minerbio | 6,068.73 mi (9,766.68 km) |
