| Wentzville to McHenry (Illinois) | 278.37 mi (447.99 km) |
| Wentzville to McKeesport (Pennsylvania) | 596.00 mi (959.16 km) |
| Wentzville to McKinleyville (California) | 1,756.81 mi (2,827.31 km) |
| Wentzville to McKinney (Texas) | 505.26 mi (813.13 km) |
| Wentzville to McLean (Virginia) | 734.77 mi (1,182.50 km) |
| Wentzville to McMinnville (Oregon) | 1,704.70 mi (2,743.45 km) |
| Wentzville to McMinnville (Tennessee) | 353.41 mi (568.76 km) |
| Wentzville to McNair (Virginia) | 723.09 mi (1,163.70 km) |
| Wentzville to McPherson (Kansas) | 368.07 mi (592.35 km) |
| Wentzville to Mead Valley (California) | 1,504.68 mi (2,421.54 km) |
| Wentzville to Meadow Woods (Florida) | 904.96 mi (1,456.39 km) |
| Wentzville to Meadowbrook (Virginia) | 733.56 mi (1,180.55 km) |
| Wentzville to Meadville (Pennsylvania) | 597.88 mi (962.19 km) |
| Wentzville to Mebane (North Carolina) | 662.76 mi (1,066.60 km) |
| Wentzville to Mechanicsville (Virginia) | 737.29 mi (1,186.56 km) |
