| River Forest to Maryland Heights (Missouri) | 260.22 mi (418.79 km) |
| River Forest to Marysville (California) | 1,771.90 mi (2,851.60 km) |
| River Forest to Marysville (Ohio) | 259.28 mi (417.28 km) |
| River Forest to Marysville (Washington) | 1,715.97 mi (2,761.59 km) |
| River Forest to Maryville (Missouri) | 382.22 mi (615.12 km) |
| River Forest to Maryville (Tennessee) | 472.30 mi (760.10 km) |
| River Forest to Mason (Ohio) | 254.45 mi (409.49 km) |
| River Forest to Mason City (Iowa) | 287.29 mi (462.34 km) |
| River Forest to Massapequa (New York) | 748.94 mi (1,205.30 km) |
| River Forest to Massapequa Park (New York) | 749.83 mi (1,206.74 km) |
| River Forest to Massillon (Ohio) | 335.33 mi (539.66 km) |
| River Forest to Mastic (New York) | 779.12 mi (1,253.87 km) |
| River Forest to Mastic Beach (New York) | 780.23 mi (1,255.66 km) |
| River Forest to Matteson (Illinois) | 26.90 mi (43.29 km) |
| River Forest to Matthews (North Carolina) | 605.25 mi (974.06 km) |
