| Porsgrunn to Montegranaro | 1,109.97 mi (1,786.32 km) |
| Porsgrunn to Montegrotto Terme | 956.18 mi (1,538.83 km) |
| Porsgrunn to Montelupo Fiorentino | 1,064.25 mi (1,712.75 km) |
| Porsgrunn to Montemarciano | 1,080.58 mi (1,739.03 km) |
| Porsgrunn to Montemurlo | 1,050.48 mi (1,690.59 km) |
| Porsgrunn to Monteprandone | 1,132.96 mi (1,823.32 km) |
| Porsgrunn to Montepulciano | 1,110.09 mi (1,786.51 km) |
| Porsgrunn to Monteriggioni | 1,087.73 mi (1,750.53 km) |
| Porsgrunn to Monteroni d'Arbia | 1,099.76 mi (1,769.89 km) |
| Porsgrunn to Monteroni di Lecce | 1,348.27 mi (2,169.83 km) |
| Porsgrunn to Monterotondo | 1,185.72 mi (1,908.23 km) |
| Porsgrunn to Montesarchio | 1,265.18 mi (2,036.10 km) |
| Porsgrunn to Montescaglioso | 1,317.99 mi (2,121.11 km) |
| Porsgrunn to Montesilvano | 1,162.67 mi (1,871.14 km) |
| Porsgrunn to Montespertoli | 1,070.15 mi (1,722.24 km) |
