| Porsgrunn to Fortuna Foothills (Arizona) | 5,336.91 mi (8,588.93 km) |
| Porsgrunn to Foster City (California) | 5,214.27 mi (8,391.56 km) |
| Porsgrunn to Fostoria (Ohio) | 3,942.32 mi (6,344.55 km) |
| Porsgrunn to Fountain (Colorado) | 4,713.81 mi (7,586.14 km) |
| Porsgrunn to Fountain Hills (Arizona) | 5,210.08 mi (8,384.81 km) |
| Porsgrunn to Fountain Inn (South Carolina) | 4,261.32 mi (6,857.92 km) |
| Porsgrunn to Fountain Valley (California) | 5,358.91 mi (8,624.33 km) |
| Porsgrunn to Fountainebleau (Florida) | 4,706.52 mi (7,574.41 km) |
| Porsgrunn to Four Corners (Oregon) | 4,761.72 mi (7,663.25 km) |
| Porsgrunn to Four Corners (Texas) | 4,984.73 mi (8,022.15 km) |
| Porsgrunn to Four Square Mile (Colorado) | 4,660.15 mi (7,499.79 km) |
| Porsgrunn to Fox Crossing (Wisconsin) | 3,931.06 mi (6,326.43 km) |
| Porsgrunn to Fox Lake (Illinois) | 4,021.44 mi (6,471.88 km) |
| Porsgrunn to Framingham (Massachusetts) | 3,489.10 mi (5,615.17 km) |
| Porsgrunn to Franconia (Virginia) | 3,868.98 mi (6,226.52 km) |
