| Castel Gandolfo to Arcore | 315.95 mi (508.48 km) |
| Castel Gandolfo to Ardea | 10.42 mi (16.77 km) |
| Castel Gandolfo to Arenzano | 271.75 mi (437.34 km) |
| Castel Gandolfo to Arese | 318.00 mi (511.78 km) |
| Castel Gandolfo to Arezzo | 124.95 mi (201.08 km) |
| Castel Gandolfo to Argelato | 206.19 mi (331.83 km) |
| Castel Gandolfo to Argenta | 202.43 mi (325.78 km) |
| Castel Gandolfo to Ariano Irpino | 132.71 mi (213.57 km) |
| Castel Gandolfo to Ariccia | 2.22 mi (3.58 km) |
| Castel Gandolfo to Arluno | 319.04 mi (513.44 km) |
| Castel Gandolfo to Arona | 344.09 mi (553.76 km) |
| Castel Gandolfo to Artena | 13.68 mi (22.02 km) |
| Castel Gandolfo to Arzachena | 175.45 mi (282.36 km) |
| Castel Gandolfo to Arzano | 101.53 mi (163.40 km) |
| Castel Gandolfo to Arzignano | 268.67 mi (432.39 km) |
