| Greenock to Rhosllanerchrugog | 214.37 mi (345.00 km) |
| Greenock to Rhyl | 188.77 mi (303.79 km) |
| Greenock to Rhymney | 295.78 mi (476.02 km) |
| Greenock to Richmond | 360.04 mi (579.42 km) |
| Greenock to Rickmansworth | 345.59 mi (556.17 km) |
| Greenock to Ripley | 241.39 mi (388.49 km) |
| Greenock to Ripon | 179.23 mi (288.44 km) |
| Greenock to Risca | 307.67 mi (495.14 km) |
| Greenock to Rochdale | 191.87 mi (308.78 km) |
| Greenock to Rochester | 382.36 mi (615.35 km) |
| Greenock to Rock Ferry | 191.38 mi (308.00 km) |
| Greenock to Rogerstone | 309.18 mi (497.58 km) |
| Greenock to Romford | 363.24 mi (584.58 km) |
| Greenock to Romsey | 368.08 mi (592.37 km) |
| Greenock to Ross on Wye | 292.56 mi (470.83 km) |
