| Porsgrunn to Chickasha (Oklahoma) | 4,738.13 mi (7,625.28 km) |
| Porsgrunn to Chico (California) | 5,065.00 mi (8,151.32 km) |
| Porsgrunn to Chicopee (Massachusetts) | 3,534.04 mi (5,687.49 km) |
| Porsgrunn to Chillicothe (Ohio) | 4,028.95 mi (6,483.97 km) |
| Porsgrunn to Chillum (Maryland) | 3,852.23 mi (6,199.57 km) |
| Porsgrunn to Chino (California) | 5,334.91 mi (8,585.71 km) |
| Porsgrunn to Chino Hills (California) | 5,338.41 mi (8,591.34 km) |
| Porsgrunn to Chino Valley (Arizona) | 5,156.41 mi (8,298.44 km) |
| Porsgrunn to Chippewa Falls (Wisconsin) | 3,978.00 mi (6,401.98 km) |
| Porsgrunn to Choctaw (Oklahoma) | 4,692.08 mi (7,551.17 km) |
| Porsgrunn to Chowchilla (California) | 5,197.79 mi (8,365.04 km) |
| Porsgrunn to Christiansburg (Virginia) | 4,065.82 mi (6,543.31 km) |
| Porsgrunn to Chubbuck (Idaho) | 4,656.64 mi (7,494.14 km) |
| Porsgrunn to Chula Vista (California) | 5,404.18 mi (8,697.19 km) |
| Porsgrunn to Cibolo (Texas) | 5,070.00 mi (8,159.38 km) |
