| Porsgrunn to Rivalta di Torino | 977.25 mi (1,572.74 km) |
| Porsgrunn to Rivarolo Canavese | 956.03 mi (1,538.58 km) |
| Porsgrunn to Rivoli | 974.80 mi (1,568.78 km) |
| Porsgrunn to Rocca di Papa | 1,205.67 mi (1,940.34 km) |
| Porsgrunn to Rocca Priora | 1,204.76 mi (1,938.88 km) |
| Porsgrunn to Roccapiemonte | 1,286.48 mi (2,070.39 km) |
| Porsgrunn to Roccastrada | 1,114.54 mi (1,793.68 km) |
| Porsgrunn to Romano di Lombardia | 939.59 mi (1,512.13 km) |
| Porsgrunn to Rome | 1,195.93 mi (1,924.66 km) |
| Porsgrunn to Roncade | 938.71 mi (1,510.71 km) |
| Porsgrunn to Ronchi dei Legionari | 931.10 mi (1,498.46 km) |
| Porsgrunn to Ronciglione | 1,167.53 mi (1,878.96 km) |
| Porsgrunn to Rosa | 929.71 mi (1,496.22 km) |
| Porsgrunn to Rosarno | 1,452.20 mi (2,337.09 km) |
| Porsgrunn to Rosignano Marittimo | 1,086.32 mi (1,748.26 km) |
