| Greenock to Redondela | 959.83 mi (1,544.70 km) |
| Greenock to Reinosa | 895.06 mi (1,440.46 km) |
| Greenock to Requena | 1,149.81 mi (1,850.45 km) |
| Greenock to Reus | 1,056.01 mi (1,699.48 km) |
| Greenock to Rianxo | 936.49 mi (1,507.13 km) |
| Greenock to Ribadeo | 863.76 mi (1,390.09 km) |
| Greenock to Rincon de la Victoria | 1,329.08 mi (2,138.95 km) |
| Greenock to Ripoll | 999.53 mi (1,608.59 km) |
| Greenock to Ripollet | 1,046.00 mi (1,683.38 km) |
| Greenock to Rojales | 1,248.17 mi (2,008.73 km) |
| Greenock to Ronda | 1,327.61 mi (2,136.58 km) |
| Greenock to Roquetas de Mar | 1,329.41 mi (2,139.48 km) |
| Greenock to Rosas | 1,009.98 mi (1,625.41 km) |
| Greenock to Rubi | 1,044.59 mi (1,681.10 km) |
| Greenock to Rute | 1,287.57 mi (2,072.14 km) |
