| Round Rock to Aberaman | 4,763.76 mi (7,666.53 km) |
| Round Rock to Aberbargoed | 4,772.09 mi (7,679.94 km) |
| Round Rock to Aberdare | 4,762.95 mi (7,665.22 km) |
| Round Rock to Aberdeen | 4,668.88 mi (7,513.84 km) |
| Round Rock to Abergavenny | 4,776.78 mi (7,687.48 km) |
| Round Rock to Abergele | 4,715.99 mi (7,589.65 km) |
| Round Rock to Abertawe | 4,745.58 mi (7,637.27 km) |
| Round Rock to Abertillery | 4,774.89 mi (7,684.44 km) |
| Round Rock to Aberystwyth | 4,719.37 mi (7,595.09 km) |
| Round Rock to Abingdon | 4,848.99 mi (7,803.69 km) |
| Round Rock to Abram | 4,747.65 mi (7,640.60 km) |
| Round Rock to Accrington | 4,749.48 mi (7,643.56 km) |
| Round Rock to Acomb | 4,790.23 mi (7,709.13 km) |
| Round Rock to Acton | 4,892.87 mi (7,874.31 km) |
| Round Rock to Addlestone | 4,888.56 mi (7,867.37 km) |
