| Irthlingborough to Rockville (Maryland) | 3,624.16 mi (5,832.53 km) |
| Irthlingborough to Rockville Centre (New York) | 3,411.46 mi (5,490.22 km) |
| Irthlingborough to Rockwall (Texas) | 4,683.63 mi (7,537.58 km) |
| Irthlingborough to Rocky Mount (North Carolina) | 3,795.45 mi (6,108.19 km) |
| Irthlingborough to Rocky Point (New York) | 3,371.20 mi (5,425.42 km) |
| Irthlingborough to Rocky River (Ohio) | 3,701.03 mi (5,956.23 km) |
| Irthlingborough to Roessleville (New York) | 3,329.50 mi (5,358.31 km) |
| Irthlingborough to Rogers (Arkansas) | 4,422.04 mi (7,116.59 km) |
| Irthlingborough to Rogers (Minnesota) | 3,963.93 mi (6,379.32 km) |
| Irthlingborough to Rohnert Park (California) | 5,273.33 mi (8,486.60 km) |
| Irthlingborough to Rolla (Missouri) | 4,249.73 mi (6,839.29 km) |
| Irthlingborough to Rolling Meadows (Illinois) | 3,908.88 mi (6,290.73 km) |
| Irthlingborough to Roma (Texas) | 5,126.90 mi (8,250.95 km) |
| Irthlingborough to Rome (Georgia) | 4,175.65 mi (6,720.06 km) |
| Irthlingborough to Rome (New York) | 3,374.03 mi (5,429.98 km) |
