| Porsgrunn to Ramnicu Sarat | 1,192.16 mi (1,918.60 km) |
| Porsgrunn to Ramnicu Valcea | 1,145.24 mi (1,843.08 km) |
| Porsgrunn to Rasnov | 1,140.41 mi (1,835.32 km) |
| Porsgrunn to Reghin | 1,051.65 mi (1,692.47 km) |
| Porsgrunn to Resita | 1,081.04 mi (1,739.76 km) |
| Porsgrunn to Roman | 1,098.37 mi (1,767.65 km) |
| Porsgrunn to Rosiori de Vede | 1,220.22 mi (1,963.75 km) |
| Porsgrunn to Rovinari | 1,131.10 mi (1,820.33 km) |
| Porsgrunn to Roznov | 1,092.96 mi (1,758.95 km) |
| Porsgrunn to Sabaoani | 1,091.29 mi (1,756.26 km) |
| Porsgrunn to Sacele | 1,144.75 mi (1,842.31 km) |
| Porsgrunn to Sacueni | 957.19 mi (1,540.45 km) |
| Porsgrunn to Salcea | 1,042.45 mi (1,677.67 km) |
| Porsgrunn to Salonta | 982.09 mi (1,580.53 km) |
| Porsgrunn to Sangeorgiu de Mures | 1,059.43 mi (1,704.99 km) |
