| Porsgrunn to Moncalieri | 978.93 mi (1,575.44 km) |
| Porsgrunn to Mondolfo | 1,071.31 mi (1,724.11 km) |
| Porsgrunn to Mondovi | 1,021.02 mi (1,643.17 km) |
| Porsgrunn to Monesiglio | 1,014.36 mi (1,632.45 km) |
| Porsgrunn to Monfalcone | 933.61 mi (1,502.50 km) |
| Porsgrunn to Monopoli | 1,297.56 mi (2,088.22 km) |
| Porsgrunn to Monreale | 1,461.97 mi (2,352.81 km) |
| Porsgrunn to Monselice | 962.95 mi (1,549.71 km) |
| Porsgrunn to Monserrato | 1,372.80 mi (2,209.31 km) |
| Porsgrunn to Monsummano | 1,054.64 mi (1,697.27 km) |
| Porsgrunn to Montagnana | 961.97 mi (1,548.14 km) |
| Porsgrunn to Montale | 1,050.45 mi (1,690.53 km) |
| Porsgrunn to Montalto di Castro | 1,161.22 mi (1,868.80 km) |
| Porsgrunn to Montalto Uffugo | 1,391.29 mi (2,239.06 km) |
| Porsgrunn to Monte Compatri | 1,202.92 mi (1,935.91 km) |
