| Pontneddfechan to Rockville (Maryland) | 3,514.85 mi (5,656.61 km) |
| Pontneddfechan to Rockville Centre (New York) | 3,301.28 mi (5,312.90 km) |
| Pontneddfechan to Rockwall (Texas) | 4,585.17 mi (7,379.12 km) |
| Pontneddfechan to Rocky Mount (North Carolina) | 3,683.00 mi (5,927.22 km) |
| Pontneddfechan to Rocky Point (New York) | 3,260.81 mi (5,247.77 km) |
| Pontneddfechan to Rocky River (Ohio) | 3,598.99 mi (5,792.02 km) |
| Pontneddfechan to Roessleville (New York) | 3,222.28 mi (5,185.76 km) |
| Pontneddfechan to Rogers (Arkansas) | 4,325.15 mi (6,960.66 km) |
| Pontneddfechan to Rogers (Minnesota) | 3,878.63 mi (6,242.06 km) |
| Pontneddfechan to Rohnert Park (California) | 5,213.57 mi (8,390.43 km) |
| Pontneddfechan to Rolla (Missouri) | 4,152.43 mi (6,682.69 km) |
| Pontneddfechan to Rolling Meadows (Illinois) | 3,813.45 mi (6,137.15 km) |
| Pontneddfechan to Roma (Texas) | 5,024.38 mi (8,085.97 km) |
| Pontneddfechan to Rome (Georgia) | 4,067.70 mi (6,546.34 km) |
| Pontneddfechan to Rome (New York) | 3,269.00 mi (5,260.95 km) |
