| Round Rock to Arcore | 5,472.89 mi (8,807.76 km) |
| Round Rock to Ardea | 5,762.79 mi (9,274.32 km) |
| Round Rock to Arenzano | 5,492.92 mi (8,840.01 km) |
| Round Rock to Arese | 5,465.87 mi (8,796.47 km) |
| Round Rock to Arezzo | 5,661.25 mi (9,110.91 km) |
| Round Rock to Argelato | 5,595.86 mi (9,005.67 km) |
| Round Rock to Argenta | 5,613.94 mi (9,034.76 km) |
| Round Rock to Ariano Irpino | 5,887.80 mi (9,475.50 km) |
| Round Rock to Ariccia | 5,763.67 mi (9,275.74 km) |
| Round Rock to Arluno | 5,462.32 mi (8,790.75 km) |
| Round Rock to Arona | 5,437.55 mi (8,750.90 km) |
| Round Rock to Artena | 5,773.48 mi (9,291.51 km) |
| Round Rock to Arzachena | 5,648.53 mi (9,090.44 km) |
| Round Rock to Arzano | 5,863.32 mi (9,436.11 km) |
| Round Rock to Arzignano | 5,558.53 mi (8,945.59 km) |
