| Piqua to Medford (Massachusetts) | 699.03 mi (1,124.97 km) |
| Piqua to Medford (New York) | 593.02 mi (954.37 km) |
| Piqua to Medford (Oregon) | 1,994.30 mi (3,209.52 km) |
| Piqua to Medina (Ohio) | 141.88 mi (228.33 km) |
| Piqua to Medulla (Florida) | 852.26 mi (1,371.58 km) |
| Piqua to Mehlville (Missouri) | 343.80 mi (553.29 km) |
| Piqua to Melbourne (Florida) | 856.65 mi (1,378.64 km) |
| Piqua to Melissa (Texas) | 829.26 mi (1,334.57 km) |
| Piqua to Melrose (Massachusetts) | 701.87 mi (1,129.54 km) |
| Piqua to Melrose Park (Illinois) | 224.14 mi (360.72 km) |
| Piqua to Melville (New York) | 570.86 mi (918.72 km) |
| Piqua to Melvindale (Michigan) | 157.22 mi (253.02 km) |
| Piqua to Memphis (Florida) | 876.35 mi (1,410.36 km) |
| Piqua to Memphis (Tennessee) | 468.18 mi (753.46 km) |
| Piqua to Menasha (Wisconsin) | 352.93 mi (567.98 km) |
