| Piqua to Roy (Utah) | 1,452.81 mi (2,338.07 km) |
| Piqua to Royal Kunia (Hawaii) | 4,441.15 mi (7,147.33 km) |
| Piqua to Royal Oak (Michigan) | 172.44 mi (277.52 km) |
| Piqua to Royal Palm Beach (Florida) | 957.26 mi (1,540.57 km) |
| Piqua to Royse City (Texas) | 832.17 mi (1,339.24 km) |
| Piqua to Ruskin (Florida) | 866.08 mi (1,393.81 km) |
| Piqua to Russellville (Alabama) | 434.38 mi (699.07 km) |
| Piqua to Russellville (Arkansas) | 590.92 mi (950.99 km) |
| Piqua to Ruston (Louisiana) | 702.99 mi (1,131.36 km) |
| Piqua to Rutherford (New Jersey) | 534.48 mi (860.16 km) |
| Piqua to Rutland (Vermont) | 626.22 mi (1,007.80 km) |
| Piqua to Sabana Grande (Puerto Rico) | 1,839.70 mi (2,960.71 km) |
| Piqua to Sachse (Texas) | 844.00 mi (1,358.28 km) |
| Piqua to Saco (Maine) | 745.94 mi (1,200.47 km) |
| Piqua to Sacramento (California) | 1,977.04 mi (3,181.74 km) |
