| Piqua to Kennewick (Washington) | 1,793.38 mi (2,886.17 km) |
| Piqua to Kenosha (Wisconsin) | 252.58 mi (406.48 km) |
| Piqua to Kent (Ohio) | 166.12 mi (267.35 km) |
| Piqua to Kent (Washington) | 1,938.35 mi (3,119.47 km) |
| Piqua to Kentwood (Michigan) | 201.40 mi (324.13 km) |
| Piqua to Kerman (California) | 1,939.66 mi (3,121.59 km) |
| Piqua to Kernersville (North Carolina) | 359.34 mi (578.30 km) |
| Piqua to Kerrville (Texas) | 1,091.10 mi (1,755.95 km) |
| Piqua to Kettering (Maryland) | 406.67 mi (654.47 km) |
| Piqua to Kettering (Ohio) | 31.84 mi (51.23 km) |
| Piqua to Kewanee (Illinois) | 306.97 mi (494.03 km) |
| Piqua to Key Biscayne (Florida) | 1,026.37 mi (1,651.78 km) |
| Piqua to Key Largo (Florida) | 1,061.71 mi (1,708.66 km) |
| Piqua to Key West (Florida) | 1,086.37 mi (1,748.34 km) |
| Piqua to Keystone (Florida) | 835.72 mi (1,344.96 km) |
