| Horb am Neckar to Ardea | 507.87 mi (817.34 km) |
| Horb am Neckar to Arenzano | 279.21 mi (449.35 km) |
| Horb am Neckar to Arese | 200.83 mi (323.20 km) |
| Horb am Neckar to Arezzo | 376.65 mi (606.16 km) |
| Horb am Neckar to Argelato | 295.67 mi (475.83 km) |
| Horb am Neckar to Argenta | 303.81 mi (488.93 km) |
| Horb am Neckar to Ariano Irpino | 593.03 mi (954.39 km) |
| Horb am Neckar to Ariccia | 503.56 mi (810.40 km) |
| Horb am Neckar to Arluno | 203.82 mi (328.02 km) |
| Horb am Neckar to Arona | 185.85 mi (299.10 km) |
| Horb am Neckar to Artena | 507.30 mi (816.42 km) |
| Horb am Neckar to Arzachena | 509.79 mi (820.43 km) |
| Horb am Neckar to Arzano | 587.50 mi (945.49 km) |
| Horb am Neckar to Arzignano | 237.57 mi (382.33 km) |
| Horb am Neckar to Ascoli Piceno | 452.87 mi (728.83 km) |
