| Rockwall to Marrero (Louisiana) | 427.60 mi (688.15 km) |
| Rockwall to Marshall (Minnesota) | 797.53 mi (1,283.51 km) |
| Rockwall to Marshall (Missouri) | 464.77 mi (747.97 km) |
| Rockwall to Marshall (Texas) | 124.05 mi (199.64 km) |
| Rockwall to Marshalltown (Iowa) | 658.86 mi (1,060.33 km) |
| Rockwall to Marshfield (Wisconsin) | 878.20 mi (1,413.32 km) |
| Rockwall to Martha Lake (Washington) | 1,691.46 mi (2,722.14 km) |
| Rockwall to Martin (Tennessee) | 491.62 mi (791.18 km) |
| Rockwall to Martinez (California) | 1,482.05 mi (2,385.13 km) |
| Rockwall to Martinez (Georgia) | 829.21 mi (1,334.49 km) |
| Rockwall to Martinsburg (West Virginia) | 1,121.48 mi (1,804.85 km) |
| Rockwall to Martinsville (Indiana) | 715.49 mi (1,151.47 km) |
| Rockwall to Martinsville (New Jersey) | 1,316.90 mi (2,119.35 km) |
| Rockwall to Martinsville (Virginia) | 974.23 mi (1,567.87 km) |
| Rockwall to Maryland City (Maryland) | 1,174.51 mi (1,890.20 km) |
