| Guayama to Mauldin (South Carolina) | 1,529.50 mi (2,461.49 km) |
| Guayama to Maumee (Ohio) | 1,931.98 mi (3,109.22 km) |
| Guayama to Maumelle (Arkansas) | 1,990.86 mi (3,203.98 km) |
| Guayama to Mayagüez (Puerto Rico) | 69.38 mi (111.66 km) |
| Guayama to Mayfield Heights (Ohio) | 1,862.29 mi (2,997.07 km) |
| Guayama to Mays Chapel (Maryland) | 1,611.59 mi (2,593.60 km) |
| Guayama to Maywood (California) | 3,379.41 mi (5,438.63 km) |
| Guayama to Maywood (Illinois) | 2,089.79 mi (3,363.19 km) |
| Guayama to McAlester (Oklahoma) | 2,163.45 mi (3,481.73 km) |
| Guayama to McAllen (Texas) | 2,128.43 mi (3,425.38 km) |
| Guayama to McCalla (Alabama) | 1,672.99 mi (2,692.42 km) |
| Guayama to McComb (Mississippi) | 1,777.39 mi (2,860.43 km) |
| Guayama to McDonough (Georgia) | 1,545.35 mi (2,487.00 km) |
| Guayama to McFarland (California) | 3,450.63 mi (5,553.25 km) |
| Guayama to McHenry (Illinois) | 2,128.54 mi (3,425.56 km) |
