| Castelli Calepio to Mauldin (South Carolina) | 4,650.74 mi (7,484.64 km) |
| Castelli Calepio to Maumee (Ohio) | 4,406.74 mi (7,091.96 km) |
| Castelli Calepio to Maumelle (Arkansas) | 5,068.99 mi (8,157.75 km) |
| Castelli Calepio to Mayagüez (Puerto Rico) | 4,708.34 mi (7,577.34 km) |
| Castelli Calepio to Mayfield Heights (Ohio) | 4,319.49 mi (6,951.54 km) |
| Castelli Calepio to Mays Chapel (Maryland) | 4,206.71 mi (6,770.05 km) |
| Castelli Calepio to Maywood (California) | 6,052.12 mi (9,739.95 km) |
| Castelli Calepio to Maywood (Illinois) | 4,558.68 mi (7,336.49 km) |
| Castelli Calepio to McAlester (Oklahoma) | 5,200.11 mi (8,368.77 km) |
| Castelli Calepio to McAllen (Texas) | 5,740.04 mi (9,237.70 km) |
| Castelli Calepio to McCalla (Alabama) | 4,920.58 mi (7,918.92 km) |
| Castelli Calepio to McComb (Mississippi) | 5,164.16 mi (8,310.91 km) |
| Castelli Calepio to McDonough (Georgia) | 4,791.34 mi (7,710.92 km) |
| Castelli Calepio to McFarland (California) | 5,987.09 mi (9,635.29 km) |
| Castelli Calepio to McHenry (Illinois) | 4,555.46 mi (7,331.31 km) |
