| Porsgrunn to Raca | 1,132.49 mi (1,822.57 km) |
| Porsgrunn to Raska | 1,187.65 mi (1,911.33 km) |
| Porsgrunn to Razanj | 1,179.13 mi (1,897.63 km) |
| Porsgrunn to Rekovac | 1,158.82 mi (1,864.94 km) |
| Porsgrunn to Ruma | 1,063.15 mi (1,710.97 km) |
| Porsgrunn to Sabac | 1,076.75 mi (1,732.86 km) |
| Porsgrunn to Secanj | 1,055.81 mi (1,699.15 km) |
| Porsgrunn to Senta | 1,007.35 mi (1,621.17 km) |
| Porsgrunn to Sid | 1,045.80 mi (1,683.06 km) |
| Porsgrunn to Sjenica | 1,179.06 mi (1,897.52 km) |
| Porsgrunn to Smederevo | 1,103.80 mi (1,776.40 km) |
| Porsgrunn to Smederevska Palanka | 1,123.53 mi (1,808.14 km) |
| Porsgrunn to Sokobanja | 1,185.95 mi (1,908.59 km) |
| Porsgrunn to Sombor | 1,000.46 mi (1,610.09 km) |
| Porsgrunn to Srbobran | 1,027.72 mi (1,653.96 km) |
