| Piqua to Wanaque (New Jersey) | 525.56 mi (845.81 km) |
| Piqua to Wantagh (New York) | 565.48 mi (910.05 km) |
| Piqua to Warner Robins (Georgia) | 523.00 mi (841.68 km) |
| Piqua to Warr Acres (Oklahoma) | 795.50 mi (1,280.23 km) |
| Piqua to Warren (Michigan) | 173.75 mi (279.62 km) |
| Piqua to Warren (Ohio) | 194.61 mi (313.19 km) |
| Piqua to Warrensburg (Missouri) | 514.58 mi (828.13 km) |
| Piqua to Warrensville Heights (Ohio) | 167.81 mi (270.06 km) |
| Piqua to Warrenville (Illinois) | 235.72 mi (379.36 km) |
| Piqua to Warrington (Florida) | 696.31 mi (1,120.60 km) |
| Piqua to Warsaw (Indiana) | 112.96 mi (181.80 km) |
| Piqua to Warwick (Rhode Island) | 676.67 mi (1,088.99 km) |
| Piqua to Wasco (California) | 1,928.53 mi (3,103.67 km) |
| Piqua to Washington (District of Columbia) | 394.57 mi (635.00 km) |
| Piqua to Washington (Illinois) | 275.60 mi (443.53 km) |
