| Cwmbran to Roy (Utah) | 4,743.38 mi (7,633.73 km) |
| Cwmbran to Royal Kunia (Hawaii) | 7,166.96 mi (11,534.11 km) |
| Cwmbran to Royal Oak (Michigan) | 3,629.68 mi (5,841.41 km) |
| Cwmbran to Royal Palm Beach (Florida) | 4,258.07 mi (6,852.70 km) |
| Cwmbran to Royse City (Texas) | 4,602.51 mi (7,407.02 km) |
| Cwmbran to Ruskin (Florida) | 4,300.76 mi (6,921.40 km) |
| Cwmbran to Russellville (Alabama) | 4,184.63 mi (6,734.51 km) |
| Cwmbran to Russellville (Arkansas) | 4,362.20 mi (7,020.27 km) |
| Cwmbran to Ruston (Louisiana) | 4,479.44 mi (7,208.97 km) |
| Cwmbran to Rutherford (New Jersey) | 3,339.12 mi (5,373.80 km) |
| Cwmbran to Rutland (Vermont) | 3,176.99 mi (5,112.86 km) |
| Cwmbran to Sabana Grande (Puerto Rico) | 4,134.16 mi (6,653.30 km) |
| Cwmbran to Sachse (Texas) | 4,612.92 mi (7,423.78 km) |
| Cwmbran to Saco (Maine) | 3,077.32 mi (4,952.47 km) |
| Cwmbran to Sacramento (California) | 5,185.89 mi (8,345.89 km) |
