| Rockville to Rhondda | 3,524.57 mi (5,672.25 km) |
| Rockville to Rhosllanerchrugog | 3,512.67 mi (5,653.10 km) |
| Rockville to Rhyl | 3,489.89 mi (5,616.44 km) |
| Rockville to Rhymney | 3,527.29 mi (5,676.62 km) |
| Rockville to Richmond | 3,655.59 mi (5,883.10 km) |
| Rockville to Rickmansworth | 3,644.87 mi (5,865.85 km) |
| Rockville to Ripley | 3,577.56 mi (5,757.52 km) |
| Rockville to Ripon | 3,551.87 mi (5,716.18 km) |
| Rockville to Risca | 3,538.15 mi (5,694.10 km) |
| Rockville to Rochdale | 3,536.78 mi (5,691.90 km) |
| Rockville to Rochester | 3,690.05 mi (5,938.57 km) |
| Rockville to Rock Ferry | 3,507.72 mi (5,645.14 km) |
| Rockville to Rogerstone | 3,540.03 mi (5,697.13 km) |
| Rockville to Romford | 3,672.50 mi (5,910.31 km) |
| Rockville to Romsey | 3,616.69 mi (5,820.51 km) |
