| Porsgrunn to Mislata | 1,427.94 mi (2,298.05 km) |
| Porsgrunn to Moana | 1,405.71 mi (2,262.27 km) |
| Porsgrunn to Moguer | 1,679.95 mi (2,703.61 km) |
| Porsgrunn to Molina de Segura | 1,533.81 mi (2,468.42 km) |
| Porsgrunn to Molins de Rey | 1,267.42 mi (2,039.71 km) |
| Porsgrunn to Mollerusa | 1,266.36 mi (2,038.00 km) |
| Porsgrunn to Mollet | 1,257.02 mi (2,022.98 km) |
| Porsgrunn to Moncada | 1,260.58 mi (2,028.70 km) |
| Porsgrunn to Moncada | 1,422.95 mi (2,290.02 km) |
| Porsgrunn to Monforte de Lemos | 1,362.49 mi (2,192.72 km) |
| Porsgrunn to Monforte del Cid | 1,505.47 mi (2,422.82 km) |
| Porsgrunn to Mongat | 1,260.92 mi (2,029.25 km) |
| Porsgrunn to Monovar | 1,503.08 mi (2,418.98 km) |
| Porsgrunn to Monserrat | 1,438.36 mi (2,314.82 km) |
| Porsgrunn to Montijo | 1,570.34 mi (2,527.22 km) |
