| Rock Island to Maricopa (Arizona) | 1,309.12 mi (2,106.82 km) |
| Rock Island to Marietta (Georgia) | 615.03 mi (989.79 km) |
| Rock Island to Marietta (Ohio) | 500.47 mi (805.42 km) |
| Rock Island to Marina (California) | 1,696.62 mi (2,730.45 km) |
| Rock Island to Marinette (Wisconsin) | 290.58 mi (467.65 km) |
| Rock Island to Marion (Arkansas) | 433.45 mi (697.56 km) |
| Rock Island to Marion (Illinois) | 272.45 mi (438.47 km) |
| Rock Island to Marion (Indiana) | 264.35 mi (425.44 km) |
| Rock Island to Marion (Iowa) | 65.18 mi (104.89 km) |
| Rock Island to Marion (Ohio) | 393.32 mi (632.99 km) |
| Rock Island to Marion Oaks (Florida) | 981.79 mi (1,580.03 km) |
| Rock Island to Markham (Illinois) | 149.85 mi (241.16 km) |
| Rock Island to Marlborough (Massachusetts) | 978.65 mi (1,574.98 km) |
| Rock Island to Marlton (New Jersey) | 826.10 mi (1,329.47 km) |
| Rock Island to Marquette (Michigan) | 384.36 mi (618.57 km) |
