| Rock Island to Morris (Illinois) | 111.70 mi (179.76 km) |
| Rock Island to Morristown (New Jersey) | 838.20 mi (1,348.96 km) |
| Rock Island to Morristown (Tennessee) | 534.40 mi (860.03 km) |
| Rock Island to Morrisville (North Carolina) | 742.83 mi (1,195.48 km) |
| Rock Island to Morro Bay (California) | 1,682.34 mi (2,707.46 km) |
| Rock Island to Morton (Illinois) | 82.96 mi (133.51 km) |
| Rock Island to Morton Grove (Illinois) | 149.32 mi (240.31 km) |
| Rock Island to Moscow (Idaho) | 1,352.99 mi (2,177.43 km) |
| Rock Island to Moses Lake (Washington) | 1,462.56 mi (2,353.76 km) |
| Rock Island to Moss Bluff (Louisiana) | 785.22 mi (1,263.70 km) |
| Rock Island to Moss Point (Mississippi) | 771.72 mi (1,241.96 km) |
| Rock Island to Moultrie (Georgia) | 806.39 mi (1,297.77 km) |
| Rock Island to Mounds View (Minnesota) | 283.83 mi (456.78 km) |
| Rock Island to Mount Airy (North Carolina) | 635.00 mi (1,021.93 km) |
| Rock Island to Mount Clemens (Michigan) | 402.64 mi (647.99 km) |
