The National Mall is about 2 miles (3.0 km) long from the U.S. Capitol to the Lincoln Memorial and covers a bit over 300 acres, depending on where you draw the boundaries. The central stretch often cited in planning documents is roughly 309 acres between the Ulysses S. Grant Memorial and the Lincoln Memorial.

Basic dimensions

  • Length from Capitol steps to Lincoln Memorial: about 1.9–2 miles (around 3 km).
  • Length from Capitol to Washington Monument: about 1.2 miles (1.8 km).
  • Width of the main greensward near 7th Street: about 1,586 feet (483 m) curb‑to‑curb, with the open lawn portion around 656 feet (200 m) wide.

Area and what’s included

Definitions of National Mall vary a bit:

  • A commonly cited figure is about 309 acres for the green space between the Grant Memorial (near the Capitol) and the Lincoln Memorial.
  • Broader historical or planning definitions sometimes extend the Mall to the Potomac River, the Tidal Basin, and related memorials, effectively enlarging the perceived area beyond that core.

Information gathered from public forums or data available on the internet and portrayed here.