| Piqua to Mankato (Minnesota) | 570.14 mi (917.54 km) |
| Piqua to Manor (Texas) | 1,007.48 mi (1,621.38 km) |
| Piqua to Manorville (New York) | 603.22 mi (970.78 km) |
| Piqua to Mansfield (Ohio) | 99.75 mi (160.53 km) |
| Piqua to Mansfield (Texas) | 886.03 mi (1,425.93 km) |
| Piqua to Manteca (California) | 1,978.92 mi (3,184.76 km) |
| Piqua to Manville (New Jersey) | 508.88 mi (818.97 km) |
| Piqua to Maple Grove (Minnesota) | 579.89 mi (933.24 km) |
| Piqua to Maple Heights (Ohio) | 165.06 mi (265.64 km) |
| Piqua to Maple Valley (Washington) | 1,930.09 mi (3,106.18 km) |
| Piqua to Mapleton (Utah) | 1,437.93 mi (2,314.13 km) |
| Piqua to Maplewood (Minnesota) | 557.29 mi (896.88 km) |
| Piqua to Marana (Arizona) | 1,583.25 mi (2,548.00 km) |
| Piqua to Marco Island (Florida) | 993.21 mi (1,598.41 km) |
| Piqua to Margate (Florida) | 988.24 mi (1,590.42 km) |
