| Piqua to Rancho Cordova (California) | 1,965.67 mi (3,163.45 km) |
| Piqua to Rancho Cucamonga (California) | 1,870.41 mi (3,010.13 km) |
| Piqua to Rancho Mirage (California) | 1,820.08 mi (2,929.13 km) |
| Piqua to Rancho Palos Verdes (California) | 1,922.41 mi (3,093.82 km) |
| Piqua to Rancho San Diego (California) | 1,874.50 mi (3,016.71 km) |
| Piqua to Rancho Santa Margarita (California) | 1,885.47 mi (3,034.38 km) |
| Piqua to Randallstown (Maryland) | 398.77 mi (641.76 km) |
| Piqua to Rantoul (Illinois) | 206.56 mi (332.42 km) |
| Piqua to Rapid City (South Dakota) | 1,007.12 mi (1,620.80 km) |
| Piqua to Ravenna (Ohio) | 172.13 mi (277.02 km) |
| Piqua to Raymondville (Texas) | 1,223.00 mi (1,968.23 km) |
| Piqua to Raymore (Missouri) | 552.32 mi (888.87 km) |
| Piqua to Raytown (Missouri) | 549.81 mi (884.84 km) |
| Piqua to Reading (Ohio) | 64.79 mi (104.28 km) |
| Piqua to Reading (Pennsylvania) | 438.68 mi (705.98 km) |
