| Waltham to Marrero (Louisiana) | 1,356.42 mi (2,182.94 km) |
| Waltham to Marshall (Minnesota) | 1,235.42 mi (1,988.22 km) |
| Waltham to Marshall (Missouri) | 1,167.94 mi (1,879.61 km) |
| Waltham to Marshall (Texas) | 1,431.95 mi (2,304.51 km) |
| Waltham to Marshalltown (Iowa) | 1,105.95 mi (1,779.85 km) |
| Waltham to Marshfield (Wisconsin) | 959.03 mi (1,543.41 km) |
| Waltham to Martha Lake (Washington) | 2,468.58 mi (3,972.80 km) |
| Waltham to Martin (Tennessee) | 1,026.78 mi (1,652.44 km) |
| Waltham to Martinez (California) | 2,661.95 mi (4,283.99 km) |
| Waltham to Martinez (Georgia) | 850.21 mi (1,368.28 km) |
| Waltham to Martinsburg (West Virginia) | 405.58 mi (652.71 km) |
| Waltham to Martinsville (Indiana) | 818.16 mi (1,316.71 km) |
| Waltham to Martinsville (New Jersey) | 212.04 mi (341.25 km) |
| Waltham to Martinsville (Virginia) | 604.82 mi (973.36 km) |
| Waltham to Maryland City (Maryland) | 369.16 mi (594.10 km) |
