| Piqua to Noblesville (Indiana) | 93.37 mi (150.26 km) |
| Piqua to Nocatee (Florida) | 713.04 mi (1,147.53 km) |
| Piqua to Nogales (Arizona) | 1,607.14 mi (2,586.43 km) |
| Piqua to Nolensville (Tennessee) | 318.39 mi (512.40 km) |
| Piqua to Norco (California) | 1,874.87 mi (3,017.31 km) |
| Piqua to Norcross (Georgia) | 429.26 mi (690.83 km) |
| Piqua to Norfolk (Nebraska) | 697.66 mi (1,122.78 km) |
| Piqua to Norfolk (Virginia) | 486.48 mi (782.92 km) |
| Piqua to Normal (Illinois) | 251.15 mi (404.19 km) |
| Piqua to Norman (Oklahoma) | 791.79 mi (1,274.26 km) |
| Piqua to Norridge (Illinois) | 224.61 mi (361.47 km) |
| Piqua to Norristown (Pennsylvania) | 470.15 mi (756.64 km) |
| Piqua to North Adams (Massachusetts) | 602.02 mi (968.86 km) |
| Piqua to North Amityville (New York) | 570.65 mi (918.37 km) |
| Piqua to North Arlington (New Jersey) | 533.29 mi (858.25 km) |
