| Waltham to Maryland Heights (Missouri) | 1,038.51 mi (1,671.32 km) |
| Waltham to Marysville (California) | 2,605.04 mi (4,192.40 km) |
| Waltham to Marysville (Ohio) | 645.75 mi (1,039.24 km) |
| Waltham to Marysville (Washington) | 2,462.18 mi (3,962.49 km) |
| Waltham to Maryville (Missouri) | 1,229.34 mi (1,978.42 km) |
| Waltham to Maryville (Tennessee) | 821.65 mi (1,322.32 km) |
| Waltham to Mason (Ohio) | 712.91 mi (1,147.31 km) |
| Waltham to Mason City (Iowa) | 1,111.76 mi (1,789.20 km) |
| Waltham to Massapequa (New York) | 165.61 mi (266.52 km) |
| Waltham to Massapequa Park (New York) | 164.14 mi (264.16 km) |
| Waltham to Massillon (Ohio) | 542.50 mi (873.07 km) |
| Waltham to Mastic (New York) | 137.07 mi (220.59 km) |
| Waltham to Mastic Beach (New York) | 139.13 mi (223.91 km) |
| Waltham to Matteson (Illinois) | 848.95 mi (1,366.26 km) |
| Waltham to Matthews (North Carolina) | 715.02 mi (1,150.72 km) |
