| Porsgrunn to Clermont (Florida) | 4,595.06 mi (7,395.03 km) |
| Porsgrunn to Cleveland (Mississippi) | 4,591.96 mi (7,390.04 km) |
| Porsgrunn to Cleveland (Ohio) | 3,869.83 mi (6,227.89 km) |
| Porsgrunn to Cleveland (Tennessee) | 4,321.82 mi (6,955.30 km) |
| Porsgrunn to Cleveland Heights (Ohio) | 3,864.19 mi (6,218.81 km) |
| Porsgrunn to Cliffside Park (New Jersey) | 3,652.79 mi (5,878.60 km) |
| Porsgrunn to Clifton (Colorado) | 4,790.80 mi (7,710.05 km) |
| Porsgrunn to Clifton (New Jersey) | 3,656.30 mi (5,884.24 km) |
| Porsgrunn to Clinton (Iowa) | 4,116.17 mi (6,624.33 km) |
| Porsgrunn to Clinton (Maryland) | 3,861.56 mi (6,214.58 km) |
| Porsgrunn to Clinton (Mississippi) | 4,659.89 mi (7,499.37 km) |
| Porsgrunn to Clinton (Utah) | 4,756.10 mi (7,654.21 km) |
| Porsgrunn to Clive (Iowa) | 4,235.03 mi (6,815.62 km) |
| Porsgrunn to Cloquet (Minnesota) | 3,910.93 mi (6,294.04 km) |
| Porsgrunn to Cloverleaf (Texas) | 4,962.56 mi (7,986.47 km) |
