| Rio Grande City to Mengen | 5,646.76 mi (9,087.58 km) |
| Rio Grande City to Meppen | 5,410.26 mi (8,706.97 km) |
| Rio Grande City to Merchweiler | 5,511.96 mi (8,870.64 km) |
| Rio Grande City to Mering | 5,704.35 mi (9,180.27 km) |
| Rio Grande City to Merseburg | 5,629.40 mi (9,059.64 km) |
| Rio Grande City to Merzenich | 5,442.75 mi (8,759.26 km) |
| Rio Grande City to Merzig | 5,491.50 mi (8,837.72 km) |
| Rio Grande City to Meschede | 5,492.06 mi (8,838.62 km) |
| Rio Grande City to Messkirch | 5,640.11 mi (9,076.88 km) |
| Rio Grande City to Messstetten | 5,627.56 mi (9,056.69 km) |
| Rio Grande City to Mettingen | 5,440.76 mi (8,756.05 km) |
| Rio Grande City to Mettlach | 5,489.36 mi (8,834.27 km) |
| Rio Grande City to Mettmann | 5,445.65 mi (8,763.93 km) |
| Rio Grande City to Metzingen | 5,627.88 mi (9,057.20 km) |
| Rio Grande City to Meuselwitz | 5,651.87 mi (9,095.81 km) |
