| Piqua to Malvern (Arkansas) | 617.32 mi (993.48 km) |
| Piqua to Manassas (Virginia) | 373.37 mi (600.88 km) |
| Piqua to Manassas Park (Virginia) | 375.01 mi (603.52 km) |
| Piqua to Manatí (Puerto Rico) | 1,835.51 mi (2,953.96 km) |
| Piqua to Manchester (Missouri) | 351.51 mi (565.70 km) |
| Piqua to Manchester (New Hampshire) | 689.22 mi (1,109.19 km) |
| Piqua to Manchester (Tennessee) | 338.97 mi (545.52 km) |
| Piqua to Manchester (Virginia) | 404.87 mi (651.58 km) |
| Piqua to Mandan (North Dakota) | 950.61 mi (1,529.86 km) |
| Piqua to Mandeville (Louisiana) | 751.19 mi (1,208.92 km) |
| Piqua to Mango (Florida) | 847.34 mi (1,363.66 km) |
| Piqua to Manhattan (Kansas) | 660.20 mi (1,062.49 km) |
| Piqua to Manhattan (New York) | 541.71 mi (871.80 km) |
| Piqua to Manhattan Beach (California) | 1,920.53 mi (3,090.79 km) |
| Piqua to Manitowoc (Wisconsin) | 324.66 mi (522.49 km) |
