| Guaynabo to Mendota Heights (Minnesota) | 2,401.89 mi (3,865.47 km) |
| Guaynabo to Menifee (California) | 3,306.11 mi (5,320.68 km) |
| Guaynabo to Menlo Park (California) | 3,609.03 mi (5,808.17 km) |
| Guaynabo to Menomonee Falls (Wisconsin) | 2,138.77 mi (3,442.01 km) |
| Guaynabo to Menomonie (Wisconsin) | 2,357.25 mi (3,793.63 km) |
| Guaynabo to Mentor (Ohio) | 1,843.31 mi (2,966.53 km) |
| Guaynabo to Mequon (Wisconsin) | 2,138.28 mi (3,441.22 km) |
| Guaynabo to Merced (California) | 3,515.63 mi (5,657.85 km) |
| Guaynabo to Mercedes (Texas) | 2,096.94 mi (3,374.70 km) |
| Guaynabo to Mercer Island (Washington) | 3,721.58 mi (5,989.30 km) |
| Guaynabo to Mercerville (New Jersey) | 1,593.86 mi (2,565.07 km) |
| Guaynabo to Meriden (Connecticut) | 1,647.66 mi (2,651.65 km) |
| Guaynabo to Meridian (Idaho) | 3,382.92 mi (5,444.29 km) |
| Guaynabo to Meridian (Mississippi) | 1,703.08 mi (2,740.84 km) |
| Guaynabo to Merriam (Kansas) | 2,226.21 mi (3,582.74 km) |
