| Porsgrunn to Foothill Farms (California) | 5,122.69 mi (8,244.17 km) |
| Porsgrunn to Fords (New Jersey) | 3,678.88 mi (5,920.59 km) |
| Porsgrunn to Forest (Virginia) | 4,015.91 mi (6,462.98 km) |
| Porsgrunn to Forest Acres (South Carolina) | 4,257.86 mi (6,852.37 km) |
| Porsgrunn to Forest City (Florida) | 4,578.26 mi (7,368.00 km) |
| Porsgrunn to Forest Grove (Oregon) | 4,726.79 mi (7,607.04 km) |
| Porsgrunn to Forest Hill (Texas) | 4,857.73 mi (7,817.76 km) |
| Porsgrunn to Forest Hills (Michigan) | 3,909.23 mi (6,291.30 km) |
| Porsgrunn to Forest Lake (Minnesota) | 4,005.75 mi (6,446.63 km) |
| Porsgrunn to Forest Park (Georgia) | 4,393.37 mi (7,070.44 km) |
| Porsgrunn to Forest Park (Illinois) | 4,040.93 mi (6,503.25 km) |
| Porsgrunn to Forest Park (Ohio) | 4,081.00 mi (6,567.73 km) |
| Porsgrunn to Forestville (Maryland) | 3,854.85 mi (6,203.78 km) |
| Porsgrunn to Forestville (Ohio) | 4,086.95 mi (6,577.31 km) |
| Porsgrunn to Forney (Texas) | 4,828.15 mi (7,770.16 km) |
