| Porsgrunn to Racale | 1,372.97 mi (2,209.58 km) |
| Porsgrunn to Racconigi | 995.05 mi (1,601.37 km) |
| Porsgrunn to Raffadali | 1,509.76 mi (2,429.73 km) |
| Porsgrunn to Ragusa | 1,549.64 mi (2,493.91 km) |
| Porsgrunn to Ramacca | 1,518.00 mi (2,442.98 km) |
| Porsgrunn to Randazzo | 1,485.41 mi (2,390.53 km) |
| Porsgrunn to Rapallo | 1,020.40 mi (1,642.18 km) |
| Porsgrunn to Ravanusa | 1,521.50 mi (2,448.61 km) |
| Porsgrunn to Ravenna | 1,021.03 mi (1,643.19 km) |
| Porsgrunn to Recanati | 1,098.01 mi (1,767.08 km) |
| Porsgrunn to Recco | 1,019.32 mi (1,640.44 km) |
| Porsgrunn to Reggello | 1,069.06 mi (1,720.49 km) |
| Porsgrunn to Reggio di Calabria | 1,474.81 mi (2,373.48 km) |
| Porsgrunn to Reggio Emilia | 996.77 mi (1,604.15 km) |
| Porsgrunn to Reggiolo | 982.14 mi (1,580.61 km) |
