| Porsgrunn to Rosolini | 1,558.52 mi (2,508.20 km) |
| Porsgrunn to Rossano | 1,384.43 mi (2,228.02 km) |
| Porsgrunn to Rottofreno | 971.32 mi (1,563.18 km) |
| Porsgrunn to Rovato | 936.19 mi (1,506.66 km) |
| Porsgrunn to Roverbella | 957.88 mi (1,541.56 km) |
| Porsgrunn to Rovereto | 915.95 mi (1,474.08 km) |
| Porsgrunn to Rovigo | 973.61 mi (1,566.87 km) |
| Porsgrunn to Rozzano | 949.10 mi (1,527.42 km) |
| Porsgrunn to Rubano | 949.29 mi (1,527.74 km) |
| Porsgrunn to Rubiera | 1,000.49 mi (1,610.13 km) |
| Porsgrunn to Ruffano | 1,373.62 mi (2,210.62 km) |
| Porsgrunn to Russi | 1,023.06 mi (1,646.46 km) |
| Porsgrunn to Rutigliano | 1,294.40 mi (2,083.14 km) |
| Porsgrunn to Ruvo di Puglia | 1,277.73 mi (2,056.31 km) |
| Porsgrunn to Sabaudia | 1,239.27 mi (1,994.42 km) |
