Acres to ft² – convert acres to square feet

Convert acres to square feet (acres to ft²) for property adverts, garden plans and land surveys. This page opens the main area converter with acre → ft² pre-selected.

Open the interactive acres → ft² converter:

Use main converter (acres → ft²) or switch to ft² → acres

From the homepage you can also convert acres into m², hectares or km² with a couple of clicks.

Quick reference: acres to ft²

The exact factor is 1 acre = 43,560 ft². Some handy values:

Acres Square feet (ft²)
0.25 acre10,890 ft²
0.5 acre21,780 ft²
1 acre43,560 ft²
2 acres87,120 ft²
5 acres217,800 ft²

Why convert acres to square feet?

From big plots to detailed plans

Acres are useful for overall site size, but square feet are better for house footprints, patios, garages and extensions. Converting between them lets you sanity-check designs and adverts.

Acres to ft² FAQ

How many ft² are in half an acre?
Half an acre is 21,780 ft² – a common benchmark for suburban plots.
Can I convert acres directly to m²?
Yes – choose acres and m² in the area category, or use the acres to m² landing page from the links below.
What about square yards?
You can convert acres → yd² by choosing those units on the homepage area converter.

More land & area converters

Updated: January 2025.