| Porsgrunn to Cervello | 1,269.25 mi (2,042.67 km) |
| Porsgrunn to Cervera | 1,259.33 mi (2,026.69 km) |
| Porsgrunn to Ceuti | 1,533.03 mi (2,467.17 km) |
| Porsgrunn to Cheste | 1,431.34 mi (2,303.52 km) |
| Porsgrunn to Chiclana de la Frontera | 1,722.52 mi (2,772.13 km) |
| Porsgrunn to Chipiona | 1,707.22 mi (2,747.51 km) |
| Porsgrunn to Chiva | 1,432.39 mi (2,305.20 km) |
| Porsgrunn to Churriana de la Vega | 1,630.86 mi (2,624.62 km) |
| Porsgrunn to Ciempozuelos | 1,432.97 mi (2,306.14 km) |
| Porsgrunn to Cieza | 1,524.42 mi (2,453.32 km) |
| Porsgrunn to Cisterniga | 1,358.70 mi (2,186.62 km) |
| Porsgrunn to Ciudad de Melilla | 1,743.79 mi (2,806.36 km) |
| Porsgrunn to Ciudad Real | 1,514.92 mi (2,438.03 km) |
| Porsgrunn to Ciudad-Rodrigo | 1,461.20 mi (2,351.57 km) |
| Porsgrunn to Cocentaina | 1,477.09 mi (2,377.15 km) |
