| Porsgrunn to Reinosa | 1,259.65 mi (2,027.22 km) |
| Porsgrunn to Requena | 1,436.84 mi (2,312.38 km) |
| Porsgrunn to Reus | 1,295.61 mi (2,085.08 km) |
| Porsgrunn to Rianxo | 1,384.97 mi (2,228.89 km) |
| Porsgrunn to Ribadeo | 1,288.99 mi (2,074.43 km) |
| Porsgrunn to Rincon de la Victoria | 1,669.91 mi (2,687.46 km) |
| Porsgrunn to Ripoll | 1,212.38 mi (1,951.14 km) |
| Porsgrunn to Ripollet | 1,260.23 mi (2,028.14 km) |
| Porsgrunn to Rojales | 1,524.83 mi (2,453.97 km) |
| Porsgrunn to Ronda | 1,683.76 mi (2,709.74 km) |
| Porsgrunn to Roquetas de Mar | 1,640.17 mi (2,639.61 km) |
| Porsgrunn to Rosas | 1,197.63 mi (1,927.39 km) |
| Porsgrunn to Rubi | 1,261.87 mi (2,030.79 km) |
| Porsgrunn to Rute | 1,631.87 mi (2,626.25 km) |
| Porsgrunn to Sabadell | 1,257.32 mi (2,023.46 km) |
