| Niagara Falls to Mechernich | 3,851.26 mi (6,198.00 km) |
| Niagara Falls to Meckenbeuren | 4,065.13 mi (6,542.19 km) |
| Niagara Falls to Meckenheim | 3,864.32 mi (6,219.02 km) |
| Niagara Falls to Meerane | 4,063.19 mi (6,539.07 km) |
| Niagara Falls to Meerbusch | 3,830.25 mi (6,164.19 km) |
| Niagara Falls to Meine | 3,938.19 mi (6,337.91 km) |
| Niagara Falls to Meinerzhagen | 3,872.04 mi (6,231.45 km) |
| Niagara Falls to Meiningen | 3,997.05 mi (6,432.63 km) |
| Niagara Falls to Meissen | 4,089.53 mi (6,581.46 km) |
| Niagara Falls to Meitingen | 4,084.93 mi (6,574.06 km) |
| Niagara Falls to Melle | 3,862.94 mi (6,216.80 km) |
| Niagara Falls to Melsungen | 3,944.15 mi (6,347.50 km) |
| Niagara Falls to Memmelsdorf | 4,039.22 mi (6,500.50 km) |
| Niagara Falls to Memmingen | 4,079.18 mi (6,564.80 km) |
| Niagara Falls to Mendig | 3,883.07 mi (6,249.19 km) |
