| Porsgrunn to Great Bend (Kansas) | 4,568.54 mi (7,352.35 km) |
| Porsgrunn to Great Falls (Montana) | 4,352.36 mi (7,004.45 km) |
| Porsgrunn to Great Falls (Virginia) | 3,860.54 mi (6,212.95 km) |
| Porsgrunn to Great Neck (New York) | 3,645.29 mi (5,866.53 km) |
| Porsgrunn to Greeley (Colorado) | 4,613.27 mi (7,424.33 km) |
| Porsgrunn to Green (Ohio) | 3,891.95 mi (6,263.48 km) |
| Porsgrunn to Green Bay (Wisconsin) | 3,900.42 mi (6,277.12 km) |
| Porsgrunn to Green River (Wyoming) | 4,669.30 mi (7,514.51 km) |
| Porsgrunn to Green Valley (Arizona) | 5,299.53 mi (8,528.77 km) |
| Porsgrunn to Green Valley (Maryland) | 3,840.60 mi (6,180.85 km) |
| Porsgrunn to Greenacres (Florida) | 4,650.20 mi (7,483.77 km) |
| Porsgrunn to Greenbelt (Maryland) | 3,847.66 mi (6,192.21 km) |
| Porsgrunn to Greendale (Wisconsin) | 3,987.50 mi (6,417.27 km) |
| Porsgrunn to Greeneville (Tennessee) | 4,199.40 mi (6,758.29 km) |
| Porsgrunn to Greenfield (California) | 5,269.95 mi (8,481.16 km) |
