| Piqua to Troy (Michigan) | 177.36 mi (285.44 km) |
| Piqua to Troy (Missouri) | 367.40 mi (591.27 km) |
| Piqua to Troy (New York) | 575.33 mi (925.90 km) |
| Piqua to Troy (Ohio) | 7.51 mi (12.08 km) |
| Piqua to Truckee (California) | 1,896.98 mi (3,052.90 km) |
| Piqua to Trujillo Alto (Puerto Rico) | 1,855.81 mi (2,986.64 km) |
| Piqua to Trumbull Center (Connecticut) | 583.88 mi (939.66 km) |
| Piqua to Trussville (Alabama) | 467.93 mi (753.06 km) |
| Piqua to Tualatin (Oregon) | 1,968.11 mi (3,167.37 km) |
| Piqua to Tuckahoe (Virginia) | 399.41 mi (642.79 km) |
| Piqua to Tucker (Georgia) | 435.78 mi (701.32 km) |
| Piqua to Tucson (Arizona) | 1,577.94 mi (2,539.45 km) |
| Piqua to Tucson Estates (Arizona) | 1,589.94 mi (2,558.76 km) |
| Piqua to Tucson Mountains (Arizona) | 1,584.07 mi (2,549.32 km) |
| Piqua to Tukwila (Washington) | 1,941.24 mi (3,124.13 km) |
