| Porsgrunn to Arcore | 931.68 mi (1,499.39 km) |
| Porsgrunn to Ardea | 1,215.25 mi (1,955.75 km) |
| Porsgrunn to Arenzano | 1,017.38 mi (1,637.32 km) |
| Porsgrunn to Arese | 937.67 mi (1,509.04 km) |
| Porsgrunn to Arezzo | 1,085.38 mi (1,746.74 km) |
| Porsgrunn to Argelato | 1,006.96 mi (1,620.54 km) |
| Porsgrunn to Argenta | 1,005.83 mi (1,618.73 km) |
| Porsgrunn to Ariano Irpino | 1,262.77 mi (2,032.24 km) |
| Porsgrunn to Ariccia | 1,208.88 mi (1,945.51 km) |
| Porsgrunn to Arluno | 941.30 mi (1,514.88 km) |
| Porsgrunn to Arona | 924.23 mi (1,487.41 km) |
| Porsgrunn to Artena | 1,208.92 mi (1,945.57 km) |
| Porsgrunn to Arzachena | 1,245.99 mi (2,005.23 km) |
| Porsgrunn to Arzano | 1,272.87 mi (2,048.49 km) |
| Porsgrunn to Arzignano | 942.02 mi (1,516.03 km) |
