| Rockwall to Morris (Illinois) | 731.37 mi (1,177.02 km) |
| Rockwall to Morristown (New Jersey) | 1,325.72 mi (2,133.54 km) |
| Rockwall to Morristown (Tennessee) | 780.52 mi (1,256.12 km) |
| Rockwall to Morrisville (North Carolina) | 1,022.37 mi (1,645.35 km) |
| Rockwall to Morro Bay (California) | 1,402.57 mi (2,257.21 km) |
| Rockwall to Morton (Illinois) | 656.49 mi (1,056.53 km) |
| Rockwall to Morton Grove (Illinois) | 787.99 mi (1,268.14 km) |
| Rockwall to Moscow (Idaho) | 1,441.63 mi (2,320.07 km) |
| Rockwall to Moses Lake (Washington) | 1,546.90 mi (2,489.49 km) |
| Rockwall to Moss Bluff (Louisiana) | 262.21 mi (421.98 km) |
| Rockwall to Moss Point (Mississippi) | 495.75 mi (797.84 km) |
| Rockwall to Moultrie (Georgia) | 751.28 mi (1,209.06 km) |
| Rockwall to Mounds View (Minnesota) | 859.73 mi (1,383.60 km) |
| Rockwall to Mount Airy (North Carolina) | 931.01 mi (1,498.31 km) |
| Rockwall to Mount Clemens (Michigan) | 995.53 mi (1,602.15 km) |
