| River Forest to McHenry (Illinois) | 39.11 mi (62.94 km) |
| River Forest to McKeesport (Pennsylvania) | 428.60 mi (689.76 km) |
| River Forest to McKinleyville (California) | 1,866.03 mi (3,003.08 km) |
| River Forest to McKinney (Texas) | 770.89 mi (1,240.62 km) |
| River Forest to McLean (Virginia) | 594.44 mi (956.66 km) |
| River Forest to McMinnville (Oregon) | 1,771.62 mi (2,851.14 km) |
| River Forest to McMinnville (Tennessee) | 442.75 mi (712.54 km) |
| River Forest to McNair (Virginia) | 583.53 mi (939.10 km) |
| River Forest to McPherson (Kansas) | 573.57 mi (923.07 km) |
| River Forest to Mead Valley (California) | 1,691.10 mi (2,721.56 km) |
| River Forest to Meadow Woods (Florida) | 1,002.73 mi (1,613.74 km) |
| River Forest to Meadowbrook (Virginia) | 630.20 mi (1,014.21 km) |
| River Forest to Meadville (Pennsylvania) | 395.61 mi (636.67 km) |
| River Forest to Mebane (North Carolina) | 609.15 mi (980.34 km) |
| River Forest to Mechanicsville (Virginia) | 628.53 mi (1,011.52 km) |
