| San Marcos to Massarosa | 6,174.01 mi (9,936.11 km) |
| San Marcos to Matelica | 6,293.35 mi (10,128.17 km) |
| San Marcos to Matera | 6,548.21 mi (10,538.33 km) |
| San Marcos to Matino | 6,631.64 mi (10,672.59 km) |
| San Marcos to Mazzarino | 6,650.94 mi (10,703.66 km) |
| San Marcos to Meda | 6,043.33 mi (9,725.81 km) |
| San Marcos to Medesano | 6,121.87 mi (9,852.20 km) |
| San Marcos to Medicina | 6,184.37 mi (9,952.78 km) |
| San Marcos to Meldola | 6,216.14 mi (10,003.91 km) |
| San Marcos to Melegnano | 6,064.17 mi (9,759.34 km) |
| San Marcos to Melendugno | 6,624.87 mi (10,661.70 km) |
| San Marcos to Melfi | 6,499.63 mi (10,460.14 km) |
| San Marcos to Melilli | 6,688.88 mi (10,764.72 km) |
| San Marcos to Melito di Napoli | 6,458.12 mi (10,393.34 km) |
| San Marcos to Melito di Porto Salvo | 6,671.79 mi (10,737.21 km) |
