| Porsgrunn to San Maurizio Canavese | 964.21 mi (1,551.75 km) |
| Porsgrunn to San Mauro Pascoli | 1,043.74 mi (1,679.74 km) |
| Porsgrunn to San Mauro Torinese | 971.56 mi (1,563.58 km) |
| Porsgrunn to San Michele al Tagliamento | 932.57 mi (1,500.82 km) |
| Porsgrunn to San Miniato | 1,067.36 mi (1,717.75 km) |
| Porsgrunn to San Pancrazio Salentino | 1,339.55 mi (2,155.79 km) |
| Porsgrunn to San Pietro in Casale | 998.54 mi (1,607.00 km) |
| Porsgrunn to San Pietro Vernotico | 1,337.58 mi (2,152.63 km) |
| Porsgrunn to San Prisco | 1,261.57 mi (2,030.30 km) |
| Porsgrunn to San Remo | 1,060.16 mi (1,706.16 km) |
| Porsgrunn to San Salvo | 1,199.00 mi (1,929.61 km) |
| Porsgrunn to San Sebastiano al Vesuvio | 1,279.26 mi (2,058.78 km) |
| Porsgrunn to San Severino Marche | 1,107.52 mi (1,782.38 km) |
| Porsgrunn to San Severo | 1,228.19 mi (1,976.58 km) |
| Porsgrunn to San Valentino Torio | 1,283.82 mi (2,066.10 km) |
