| Waterloo to Marshall (Minnesota) | 4,316.34 mi (6,946.47 km) |
| Waterloo to Marshall (Missouri) | 4,487.32 mi (7,221.65 km) |
| Waterloo to Marshall (Texas) | 4,865.04 mi (7,829.52 km) |
| Waterloo to Marshalltown (Iowa) | 4,332.40 mi (6,972.32 km) |
| Waterloo to Marshfield (Wisconsin) | 4,107.49 mi (6,610.36 km) |
| Waterloo to Martha Lake (Washington) | 4,927.25 mi (7,929.65 km) |
| Waterloo to Martin (Tennessee) | 4,459.31 mi (7,176.57 km) |
| Waterloo to Martinez (California) | 5,502.95 mi (8,856.15 km) |
| Waterloo to Martinez (Georgia) | 4,326.84 mi (6,963.38 km) |
| Waterloo to Martinsburg (West Virginia) | 3,880.22 mi (6,244.61 km) |
| Waterloo to Martinsville (Indiana) | 4,216.11 mi (6,785.18 km) |
| Waterloo to Martinsville (New Jersey) | 3,691.61 mi (5,941.07 km) |
| Waterloo to Martinsville (Virginia) | 4,084.59 mi (6,573.51 km) |
| Waterloo to Maryland City (Maryland) | 3,848.90 mi (6,194.20 km) |
| Waterloo to Maryland Heights (Missouri) | 4,404.58 mi (7,088.49 km) |
