Acres to Square Feet Converter

The acre and the square foot are both units of area that belong to the yard-pound system and the U.S. customary system respectively but differ in size.

An acre is typically used to measure land areas such as building plots, farms or parks and for property drawings and documents. A square foot, on the other hand, is often used for rooms, houses and smaller areas. Converting acres to square feet allows you to express the size of a piece of land in a common unit that is used both in construction plans and when giving floor plans.

This calculator allows for a two way conversion between acres and square feet while also showing results in square meters, square yards, hectares, square inches, square centimeters, square kilometers and square miles. It also shows the size of an equivalent area in a rectangle which makes it intuitive to understand the space occupied.

To convert acres to square feet, use this formula:

Since an acre is by definition 43,560 square feet, converting acres to square feet is simply a matter of multiplication.

For example, if a property is 2 acres in size, then multiplying by 43,560 gives you an area of 87,120 square feet. Half an acre would be 0.5 times 43,560 which equals 21,780 square feet. A quarter of an acre is 10,890 sq ft.

How to convert square feet to acres:

Since one square foot (divided by 1, multiplied by 43,560) is equal to one acre which is approximately 0.00002295684 acres, you can get the number of acres by dividing the number of square feet by 43,560.

A 10,000 square foot lot is about 0.2296 acres, which is the result of dividing 10,000 by 43,560. This is an area that is slightly less than a quarter of an acre. To work in reverse with a calculator, select square feet as your input unit and check the result in acres.

Step-by-step examples:

We will explain how to convert acres into square feet with some examples from start to finish. In each example, simply multiply by 43,560.

• To convert 1.5 acres into square feet, multiply 1.5 by 43,560 to get 65,340 sq ft.

• To convert 0.25 acres to square feet, multiply 0.25 by 43,560, which is equal to 10,890 sq ft.

• To convert 0.75 acres to square feet, multiply 0.75 by 43,560, which is equal to 32,670 sq. ft.

• To convert 3.2 acres to square feet, multiply 3.2 by 43,560, which is equal to 139,392 sq ft.

• To convert 10 acres into square feet, multiply 10 by 43,560 to get 435,600 sq. ft.

• Conversely, 100 square feet is about 0.0023 acres, which is the result of dividing 100 by 43,560.

Why is an acre exactly 43,560 square feet?

The acre originated in the Middle Ages. Originally it referred to the amount of land that a pair of oxen could plough in one day. As turning was the most time-consuming part of ploughing, this land would usually be divided into narrow strips.

This land had a width of one "chain" and a length of one "furlong". A chain is equal to 66 feet, while a furlong is equal to 660 feet. When you multiply 66 by 660, you get 43,560 square feet.

However, an acre doesn't have to be that shape. It can be rectangular, square, triangular or any other shape as long as it measures 43,560 square feet. If you make a square out of it, each side will measure about 208.7 feet.

Acre to Square Feet conversion table:

Below are some common values for easy reference. For other values you can multiply by 43,560 to make the conversion.

Square Feet to Acres Conversion Table

This conversion table is used to convert the area of a property given in square feet into acres. Simply divide the number of square feet by 43,560.

Square feet of typical residential lots

Land parcels are usually quoted in fractions of an acre. Here are some common conversions:

• A tenth of an acre is 4,356 square feet and is comparable to a compact city lot.

• An eighth of an acre is 5,445 square feet and is a typical lot size for townhouses.

• A quarter acre is 10,890 square feet and is a typical lot size for suburban single-family homes.

• One-third of an acre is equal to 14,520 square feet and is comparable to a relatively large suburban lot.

• A half acre is equivalent to 21,780 square feet and is comparable to a large parcel of land.

• An acre is equal to 43,560 square feet and is about 90 percent the size of a football field without the end zones.

Situations where you might need to convert acres to square feet.

The land is usually quoted and sold in acres while many practical jobs use square feet. It is often necessary to convert between these two units in the following areas:

• In real estate, acreage is compared to houses or land expressed in square feet.

• In architecture and construction, the size of buildings and paved areas is determined by the number of acres on which they are built.

• In agriculture and gardening, the amounts of seeds, fertilizers, lawn and mulch are calculated. These materials are usually sold by the square foot.

• In town planning and land subdivision, it is used to check whether a zoning plan meets minimum area requirements set out in square feet when the plots are measured in acres.

Common mistakes to avoid:

Most wrong answers result from two common mistakes. The first is confusing multiplication and division. To convert from acres to square feet you need to multiply by 43,560, and to convert from square feet to acres you need to divide by 43,560. The second mistake is confusing area with length. An acre is a unit of area and cannot be directly converted into a single length. A square acre of land would have sides that are about 208.7 feet long, but this side length is not the same concept as an acre of area.

What is an acre?

An acre is a unit of area with symbol "ac". It belongs to the yard-pound system and US customary system, mainly used for measuring agricultural areas, building plots, parks, and rural properties.

An acre is equal to 43,560 square feet, 4,840 square yards, about 4,046.86 square meters or 0.4047 hectares. You can think of an acre as being roughly the size of a football field without the end zones.

What is a square foot?

A square foot is the area of a square with sides that are one foot in length. Area is calculated by multiplying length and width together. The symbol for it is ft², but it can also be referred to as sf, sqft or sq ft, all of which have the same meaning.

It is a unit of area in the imperial and U.S. customary measurement systems equal to 144 square inches or exactly 0.09290304 square metres. The square foot is an everyday unit for expressing interior space or building size, with one square foot being equivalent to 1/43,560 of an acre.

Related units of area:

The same area can be expressed in different units. The calculator displays these results simultaneously. Since a square yard is equal to nine square feet, an acre is 4,840 square yards.

A hectare is equal to 10,000 square meters and approximately 2.471 acres. This is a common unit of area measurement used in countries that use the metric system. For very large areas, one square kilometer is equivalent to about 247 acres, while one square mile is exactly 640 acres, which is known as a "section" in land surveying.

Here's how to use this calculator.

• Enter the area in the input field.

• Select the original unit from the units switcher. If you're converting from acre to square feet, then the default unit is acre. If you want to start with a different unit, select square foot, square meter, square yard or hectare.

• Check your result in square feet above, and also see the value in acres next to it.

• Scroll through the results cards to view the results. The cards show the results in hectares, square meters and square yards as well as a representation of a square area so you can get an idea of how big it actually is.

The conversion results are for general reference only. For land surveying, legal, real estate or contractual applications you should verify the values using recognized standards or by the opinion of a qualified land surveyor and ensure that the required accuracy is achieved.