Square Feet to Acres Calculator

Created by Luciano Mino
Reviewed by Jack Bowater
Last updated: May 09, 2022

Our square feet to acres calculator will help you convert square feet to acres with ease.

There is no need to worry if you don't know how to convert square feet to acres. That's where the square feet to acres converter comes in! Within this short text, we will explain everything there is to know about the square feet to acres conversion.

Let's dive right in!

Square feet and acres definitions

Before we dwell on the square feet to acres conversion, let's start with the definitions of square feet and acre as area units.

  • Square foot (ft²) - A square foot is the area occupied by a 1-foot long by a 1-foot wide square; and
  • Acre (ac) - An acre is defined as 1/640th of a square mile, 4840 square yards, or 43560 square feet.

Both are US Customary System area units and you can already get a hint of how many square feet to an acre by looking at the acre definition. Let's see it explicitly in the following section

🙋 Do you already know or don't need the definitions? Just skip ahead and start converting with the square feet to acres calculator! Input either of the two units and the calculator will give you the equivalent amount of the other.

How many square feet to an acre? Square feet to acres conversion

From the acre definition: an acre is equal to 43560 ft². Inversely, a square foot equals 1/43560 (or 0.0000229568) ac.

  • 1 acre ↔ 43560 ft².
  • 1 ft² ↔ 1/43560 ac

How to convert square feet to acres?

To quickly convert square feet to acres:

  1. Get the area measurement in square feet (ft²).
  2. Divide this number by 43560. This is given by the conversion factor since 1 acre equals 43560 square feet.
  3. The result is the area expressed in acres (ac).

As you can see, to convert square feet to acres, you only need to divide the area in square feet by the conversion factor (43560). This is precisely what the square feet to acres calculator does, and although the calculator is faster, it is good to know what type of math operation is being used.

💡 The square feet to acres converter works both ways: ft² to ac, and ac to ft². Try it out!

Other useful tools


How many acres are in 10000 square feet?

0.229568. Since 1 acre is 43560 square feet, dividing by this number will convert 10000 square feet to acres. If we wanted to do the inverse operation (acres to square feet), we would need to multiply by the conversion factor instead.

How many acres is a football field?

A standard American football field is 1.32 acres in size. A football field is 360 feet long by 160 feet wide, which encloses an area of 57600 ft². We convert to acres by dividing by 43560, which gives ≈1.32 ac.

Luciano Mino
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