| Pittsburgh to Ridgeland (Mississippi) | 790.46 mi (1,272.12 km) |
| Pittsburgh to Ridgewood (New Jersey) | 309.31 mi (497.79 km) |
| Pittsburgh to Rifle (Colorado) | 1,466.74 mi (2,360.49 km) |
| Pittsburgh to Rincon (Georgia) | 567.09 mi (912.64 km) |
| Pittsburgh to Ringwood (New Jersey) | 301.80 mi (485.70 km) |
| Pittsburgh to Río Grande (Puerto Rico) | 1,740.38 mi (2,800.87 km) |
| Pittsburgh to Rio Grande City (Texas) | 1,451.88 mi (2,336.58 km) |
| Pittsburgh to Rio Linda (California) | 2,191.63 mi (3,527.08 km) |
| Pittsburgh to Rio Rancho (New Mexico) | 1,494.21 mi (2,404.70 km) |
| Pittsburgh to Rio Rico (Arizona) | 1,829.71 mi (2,944.64 km) |
| Pittsburgh to Ripon (California) | 2,194.89 mi (3,532.34 km) |
| Pittsburgh to River Edge (New Jersey) | 312.86 mi (503.49 km) |
| Pittsburgh to River Falls (Wisconsin) | 710.61 mi (1,143.62 km) |
| Pittsburgh to River Forest (Illinois) | 419.98 mi (675.90 km) |
| Pittsburgh to River Grove (Illinois) | 421.31 mi (678.04 km) |
