| Cities | Distance |
|---|---|
| Porsgrunn to Mikkeli | 622.70 mi (1,002.14 km) |
| Porsgrunn to Mikkelin Maalaiskunta | 620.55 mi (998.68 km) |
| Porsgrunn to Muhos | 655.84 mi (1,055.47 km) |
| Porsgrunn to Muurame | 577.87 mi (929.99 km) |
| Porsgrunn to Naantali | 437.77 mi (704.52 km) |
| Porsgrunn to Narpes | 454.24 mi (731.03 km) |
| Porsgrunn to Nastola | 572.47 mi (921.30 km) |
| Porsgrunn to Nivala | 600.46 mi (966.35 km) |
| Porsgrunn to Nokia | 498.55 mi (802.34 km) |
| Porsgrunn to Nurmijarvi | 531.89 mi (855.99 km) |
| Porsgrunn to Nurmo | 510.09 mi (820.92 km) |
| Porsgrunn to Orimattila | 564.85 mi (909.03 km) |
| Porsgrunn to Orivesi | 528.97 mi (851.29 km) |
| Porsgrunn to Oulu | 649.95 mi (1,045.99 km) |
| Porsgrunn to Oulunsalo | 645.67 mi (1,039.10 km) |