| Willoughby to Mengen | 4,201.21 mi (6,761.19 km) |
| Willoughby to Meppen | 3,965.66 mi (6,382.12 km) |
| Willoughby to Merchweiler | 4,066.22 mi (6,543.95 km) |
| Willoughby to Mering | 4,258.50 mi (6,853.40 km) |
| Willoughby to Merseburg | 4,185.15 mi (6,735.34 km) |
| Willoughby to Merzenich | 3,996.90 mi (6,432.38 km) |
| Willoughby to Merzig | 4,045.79 mi (6,511.06 km) |
| Willoughby to Meschede | 4,046.64 mi (6,512.44 km) |
| Willoughby to Messkirch | 4,194.63 mi (6,750.60 km) |
| Willoughby to Messstetten | 4,182.02 mi (6,730.31 km) |
| Willoughby to Mettingen | 3,995.95 mi (6,430.86 km) |
| Willoughby to Mettlach | 4,043.63 mi (6,507.59 km) |
| Willoughby to Mettmann | 3,999.95 mi (6,437.30 km) |
| Willoughby to Metzingen | 4,182.13 mi (6,730.49 km) |
| Willoughby to Meuselwitz | 4,207.43 mi (6,771.20 km) |
