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Square Feet - Acres Converter

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Convert between square feet and acres (ft² and ac) using this area conversion tool. This converter is part of the full area converter. Simply choose whether you want to convert square feet to acres or acres to square feet, enter a value and click the 'convert' button. Reference charts are available down the page.


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Whilst every effort has been made in building this square feet - acres converter, we are not to be held liable for any special, incidental, indirect or consequential damages or monetary losses of any kind arising out of or in connection with the use of the converter tools and information derived from the web site. This square feet - acres converter is here purely as a service to you, please use it at your own risk. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate conversions.

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Converting acres and square feet

Some commonly asked questions are included below, as well as a reference chart. When making manual conversions, you can use the converter at the top of this page to check your answer.

How many square feet are there in 1 acre?

There are 43560 square feet in 1 acre. To convert from acres to square feet, multiply your figure by 43560 .

How many acres are there in 1 square foot?

There are 2.2956841138659E-5 acres in 1 square foot. To convert from square feet to acres, divide your figure by 43560 .


In the chart below, figures are rounded to a maximum of 4 decimal places (6 with smaller numbers) to give approximations.

Acres and square feet reference chart

Acres Square Feet
0.1 4356
1 43560
2 87120
3 130680
4 174240
5 217800
6 261360
7 304920
8 348480
9 392040
10 435600
20 871200
30 1306800
40 1742400
50 2178000
60 2613600
70 3049200
80 3484800
90 3920400
100 4356000

What is an acre?

The acre is a unit of land commonly employed within North America and the Caribbean. It is equal to 4,047 square metres or 43,560 square feet. This measurement is roughly equivalent to 40 per cent of a hectare. Interestingly enough, the acre can trace its roots back to mediaeval times. It was defined as the area that could be ploughed in a single day with the help of an ox. One acre is approximately 76 per cent the size of a football field. Many suburban lots are between one-quarter and one-fifth of an acre in size. You can find out more about acres in the article, how big is an acre?

What is a square foot?

The square foot is used as a form of measurement within Canada and the United States. It can be adopted to describe the amount of floor space (for real estate) or the overall size of an exterior property. Architects will also refer to square feet when designing new buildings. One square foot is a bit smaller than an average-sized piece of A4 printer paper. One square foot can be translated to 0.092 square metres. Sometimes, the force of the modern hydraulic press is measured in pounds per square inch or square foot. To calculate an area in square feet, give the square footage calculator a try.


Other individual area converters

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