| Porsgrunn to North Augusta (South Carolina) | 4,319.39 mi (6,951.39 km) |
| Porsgrunn to North Aurora (Illinois) | 4,060.36 mi (6,534.52 km) |
| Porsgrunn to North Babylon (New York) | 3,635.38 mi (5,850.59 km) |
| Porsgrunn to North Bay Shore (New York) | 3,631.74 mi (5,844.72 km) |
| Porsgrunn to North Bellmore (New York) | 3,644.75 mi (5,865.66 km) |
| Porsgrunn to North Bellport (New York) | 3,619.71 mi (5,825.37 km) |
| Porsgrunn to North Bend (Oregon) | 4,883.07 mi (7,858.55 km) |
| Porsgrunn to North Bethesda (Maryland) | 3,852.95 mi (6,200.72 km) |
| Porsgrunn to North Branch (Minnesota) | 3,991.31 mi (6,423.39 km) |
| Porsgrunn to North Canton (Ohio) | 3,893.45 mi (6,265.90 km) |
| Porsgrunn to North Charleston (South Carolina) | 4,290.93 mi (6,905.58 km) |
| Porsgrunn to North Chicago (Illinois) | 4,017.41 mi (6,465.40 km) |
| Porsgrunn to North Decatur (Georgia) | 4,380.50 mi (7,049.73 km) |
| Porsgrunn to North Druid Hills (Georgia) | 4,381.07 mi (7,050.64 km) |
| Porsgrunn to North Fair Oaks (California) | 5,218.00 mi (8,397.55 km) |
