| Porsgrunn to Port Chester (New York) | 3,632.39 mi (5,845.76 km) |
| Porsgrunn to Port Hueneme (California) | 5,360.12 mi (8,626.28 km) |
| Porsgrunn to Port Huron (Michigan) | 3,812.48 mi (6,135.60 km) |
| Porsgrunn to Port Lavaca (Texas) | 5,077.18 mi (8,170.93 km) |
| Porsgrunn to Port Neches (Texas) | 4,912.93 mi (7,906.60 km) |
| Porsgrunn to Port Orange (Florida) | 4,538.09 mi (7,303.36 km) |
| Porsgrunn to Port Orchard (Washington) | 4,592.48 mi (7,390.89 km) |
| Porsgrunn to Port Royal (South Carolina) | 4,343.22 mi (6,989.73 km) |
| Porsgrunn to Port Salerno (Florida) | 4,622.21 mi (7,438.73 km) |
| Porsgrunn to Port St. John (Florida) | 4,567.33 mi (7,350.40 km) |
| Porsgrunn to Port St. Lucie (Florida) | 4,621.38 mi (7,437.40 km) |
| Porsgrunn to Port Washington (New York) | 3,642.12 mi (5,861.43 km) |
| Porsgrunn to Port Washington (Wisconsin) | 3,959.31 mi (6,371.89 km) |
| Porsgrunn to Port Wentworth (Georgia) | 4,368.98 mi (7,031.19 km) |
| Porsgrunn to Portage (Indiana) | 4,037.00 mi (6,496.92 km) |
