| Porsgrunn to Camas (Washington) | 4,708.59 mi (7,577.75 km) |
| Porsgrunn to Cambridge (Maryland) | 3,844.65 mi (6,187.37 km) |
| Porsgrunn to Cambridge (Massachusetts) | 3,474.90 mi (5,592.31 km) |
| Porsgrunn to Camden (Arkansas) | 4,668.75 mi (7,513.62 km) |
| Porsgrunn to Camden (New Jersey) | 3,737.50 mi (6,014.93 km) |
| Porsgrunn to Cameron Park (California) | 5,115.66 mi (8,232.86 km) |
| Porsgrunn to Camp Pendleton South (California) | 5,375.46 mi (8,650.97 km) |
| Porsgrunn to Camp Springs (Maryland) | 3,859.01 mi (6,210.48 km) |
| Porsgrunn to Camp Verde (Arizona) | 5,153.85 mi (8,294.33 km) |
| Porsgrunn to Campbell (California) | 5,224.97 mi (8,408.78 km) |
| Porsgrunn to Campbellsville (Kentucky) | 4,215.68 mi (6,784.48 km) |
| Porsgrunn to Campton Hills (Illinois) | 4,054.82 mi (6,525.60 km) |
| Porsgrunn to Canby (Oregon) | 4,734.82 mi (7,619.95 km) |
| Porsgrunn to Candelaria (Puerto Rico) | 4,635.07 mi (7,459.42 km) |
| Porsgrunn to Candler-McAfee (Georgia) | 4,384.52 mi (7,056.20 km) |
