| Philadelphia to Ridgeland (Mississippi) | 985.40 mi (1,585.84 km) |
| Philadelphia to Ridgewood (New Jersey) | 86.09 mi (138.55 km) |
| Philadelphia to Rifle (Colorado) | 1,723.82 mi (2,774.22 km) |
| Philadelphia to Rincon (Georgia) | 631.96 mi (1,017.05 km) |
| Philadelphia to Ringwood (New Jersey) | 88.30 mi (142.11 km) |
| Philadelphia to Río Grande (Puerto Rico) | 1,593.78 mi (2,564.94 km) |
| Philadelphia to Rio Grande City (Texas) | 1,653.43 mi (2,660.94 km) |
| Philadelphia to Rio Linda (California) | 2,447.73 mi (3,939.24 km) |
| Philadelphia to Rio Rancho (New Mexico) | 1,747.82 mi (2,812.85 km) |
| Philadelphia to Rio Rico (Arizona) | 2,079.14 mi (3,346.06 km) |
| Philadelphia to Ripon (California) | 2,451.60 mi (3,945.46 km) |
| Philadelphia to River Edge (New Jersey) | 85.72 mi (137.95 km) |
| Philadelphia to River Falls (Wisconsin) | 950.52 mi (1,529.72 km) |
| Philadelphia to River Forest (Illinois) | 674.03 mi (1,084.75 km) |
| Philadelphia to River Grove (Illinois) | 675.22 mi (1,086.67 km) |
