| Piqua to Merriam (Kansas) | 561.54 mi (903.72 km) |
| Piqua to Merrick (New York) | 563.22 mi (906.41 km) |
| Piqua to Merrifield (Virginia) | 383.40 mi (617.02 km) |
| Piqua to Merrillville (Indiana) | 184.95 mi (297.65 km) |
| Piqua to Merritt Island (Florida) | 842.71 mi (1,356.21 km) |
| Piqua to Mesa (Arizona) | 1,583.04 mi (2,547.66 km) |
| Piqua to Mesquite (Nevada) | 1,625.36 mi (2,615.77 km) |
| Piqua to Mesquite (Texas) | 853.72 mi (1,373.93 km) |
| Piqua to Metairie (Louisiana) | 777.12 mi (1,250.66 km) |
| Piqua to Methuen Town (Massachusetts) | 698.54 mi (1,124.19 km) |
| Piqua to Metuchen (New Jersey) | 520.77 mi (838.10 km) |
| Piqua to Mexico (Missouri) | 411.28 mi (661.90 km) |
| Piqua to Miami (Florida) | 1,019.49 mi (1,640.70 km) |
| Piqua to Miami (Oklahoma) | 616.62 mi (992.36 km) |
| Piqua to Miami Beach (Florida) | 1,018.19 mi (1,638.61 km) |
