Acres to square feet (acre to sq ft) converter

What are acres and square feet?

Acres (acre)

An acre is a unit of area used mainly to measure land in the imperial and United States customary systems. By definition, one acre equals exactly 43,560 square feet. The unit has medieval roots: it once described the area a single farmer with a team of oxen could plough in one day, traditionally laid out as a long, narrow strip. Acres remain the standard for quoting the size of farms, building lots, parks, and rural property in the United States, the United Kingdom, and elsewhere.

Square feet (sq ft)

A square foot (sq ft, or ft²) is a unit of area equal to a square measuring one foot on each side. It belongs to the imperial and United States customary systems and is the everyday choice for measuring indoor spaces such as rooms, offices, and apartments, as well as smaller outdoor areas like patios and gardens. Because it is a comparatively small unit, large parcels of land are usually expressed in acres instead.

Square meters (m²)

A square meter (m²) is the SI unit of area, defined as a square one meter on each side. It is the metric standard used almost everywhere outside the United States for construction, property listings, and official land records. Including square meters lets this converter speak to both customary and metric audiences at once.

How does the calculator work?

The converter keeps three area units in sync. Enter a number in any field and the other two recalculate immediately. It remembers which field was edited most recently and converts from that field to the rest, so the three values always agree no matter where you start.

Every relationship is exact. One acre is defined as 43,560 square feet, a square foot is exactly 0.09290304 square meters, and combining those facts makes one acre exactly 4,046.8564224 square meters.

Acres, square feet, and square meters conversion formulas

To convert acres to square feet, multiply by 43,560:

$$\text{Square feet} = \text{Acres} \times 43560$$

To convert square feet back to acres, divide by 43,560:

$$\text{Acres} = \frac{\text{Square feet}}{43560}$$

Acres relate to square meters through the exact factor 4046.8564224:

$$\text{Square meters} = \text{Acres} \times 4046.8564224$$

And square feet convert to square meters with the exact factor 0.09290304:

$$\text{Square meters} = \text{Square feet} \times 0.09290304$$

Conversion table

The table below summarizes how each unit relates to the others.

For conversion between other units of area, use the area unit converter.

Examples

The following examples reuse the same numbers as the calculator’s test fixtures.

Example 1: Convert 1 acre to square feet and square meters

Starting from the definition of an acre:

$$\text{Square feet} = 1 \times 43560 = 43560$$

And in metric units:

$$\text{Square meters} = 1 \times 4046.8564224 = 4046.85642$$

So 1 acre equals 43,560 sq ft, or about 4,046.86 m².

Example 2: Convert 2 acres to square feet

For a two-acre parcel:

$$\text{Square feet} = 2 \times 43560 = 87120$$

Thus 2 acres equals 87,120 square feet.

Example 3: Convert 5 acres to square feet

For a five-acre parcel:

$$\text{Square feet} = 5 \times 43560 = 217800$$

So 5 acres equals 217,800 square feet.

Practical applications

Real estate agents constantly switch between acres and square feet: a listing might describe a 5-acre property while the buildable footprint or floor area is quoted in square feet. Converting helps everyone picture the true scale of a property.

In agriculture and land management, acreage drives yield estimates, irrigation planning, and pricing, while engineering and construction specs are often written in square feet. A reliable conversion keeps field measurements and paperwork consistent.

Bringing square meters into the picture supports cross-border deals and projects governed by metric building codes, so the same plot can be reported accurately to American and international stakeholders alike.

Frequently asked questions

How many square feet are in an acre?

One acre contains exactly 43,560 square feet.

How do I convert acres to square feet?

Multiply the number of acres by 43,560. For example, 5 acres × 43,560 = 217,800 sq ft.

How many square feet are in 2 acres?

2 acres equals 87,120 square feet.

How big is an acre in square meters?

One acre equals exactly 4,046.8564224 square meters, roughly 4,047 m².

Why is an acre 43,560 square feet?

The number derives from the old definition of an acre as one chain (66 feet) by one furlong (660 feet); 66 × 660 = 43,560 square feet.

How do I convert square feet back to acres?

Divide the square footage by 43,560. For instance, 43,560 sq ft ÷ 43,560 = 1 acre.