| Porsgrunn to Lake Grove (New York) | 3,621.66 mi (5,828.50 km) |
| Porsgrunn to Lake Havasu City (Arizona) | 5,220.49 mi (8,401.56 km) |
| Porsgrunn to Lake Hopatcong (New Jersey) | 3,666.24 mi (5,900.24 km) |
| Porsgrunn to Lake in the Hills (Illinois) | 4,039.31 mi (6,500.64 km) |
| Porsgrunn to Lake Jackson (Texas) | 5,014.78 mi (8,070.50 km) |
| Porsgrunn to Lake Los Angeles (California) | 5,299.64 mi (8,528.95 km) |
| Porsgrunn to Lake Magdalene (Florida) | 4,646.31 mi (7,477.51 km) |
| Porsgrunn to Lake Mary (Florida) | 4,569.01 mi (7,353.11 km) |
| Porsgrunn to Lake Monticello (Virginia) | 3,954.14 mi (6,363.57 km) |
| Porsgrunn to Lake Morton-Berrydale (Washington) | 4,593.20 mi (7,392.04 km) |
| Porsgrunn to Lake Norman of Catawba (North Carolina) | 4,170.61 mi (6,711.94 km) |
| Porsgrunn to Lake Oswego (Oregon) | 4,725.77 mi (7,605.39 km) |
| Porsgrunn to Lake Ridge (Virginia) | 3,878.44 mi (6,241.75 km) |
| Porsgrunn to Lake Ronkonkoma (New York) | 3,623.06 mi (5,830.75 km) |
| Porsgrunn to Lake Shore (Maryland) | 3,828.46 mi (6,161.31 km) |
