| Mackworth to Marshall (Minnesota) | 4,021.86 mi (6,472.57 km) |
| Mackworth to Marshall (Missouri) | 4,192.16 mi (6,746.63 km) |
| Mackworth to Marshall (Texas) | 4,571.23 mi (7,356.68 km) |
| Mackworth to Marshalltown (Iowa) | 4,037.14 mi (6,497.14 km) |
| Mackworth to Marshfield (Wisconsin) | 3,812.27 mi (6,135.26 km) |
| Mackworth to Martha Lake (Washington) | 4,653.85 mi (7,489.65 km) |
| Mackworth to Martin (Tennessee) | 4,165.95 mi (6,704.45 km) |
| Mackworth to Martinez (California) | 5,219.98 mi (8,400.74 km) |
| Mackworth to Martinez (Georgia) | 4,039.46 mi (6,500.88 km) |
| Mackworth to Martinsburg (West Virginia) | 3,590.21 mi (5,777.89 km) |
| Mackworth to Martinsville (Indiana) | 3,922.23 mi (6,312.22 km) |
| Mackworth to Martinsville (New Jersey) | 3,402.67 mi (5,476.06 km) |
| Mackworth to Martinsville (Virginia) | 3,795.89 mi (6,108.89 km) |
| Mackworth to Maryland City (Maryland) | 3,559.99 mi (5,729.24 km) |
| Mackworth to Maryland Heights (Missouri) | 4,109.89 mi (6,614.22 km) |
