# Acreage Calculator – Convert and Compare Area Measurements

Use this acreage calculator to convert measurements from Imperial and metric systems to acres. Choose your preferred measurement, input the length and width, and the calculator will automatically show the equivalent acreage.

## Acreage and Area Calculator

Enter the length and width of the land plot to calculate the acreage and area in various units:

Length (ft):

Width (ft):

If you know the area size in square footage, square mileage, square yards, square meters, or hectares, you can use the following formulas to calculate the area in acres:

– Acres = square feet ÷ 43,560

– Acres = square miles x 640

– Acres = square yards ÷ 4,480

– Acres = square meters ÷ 4,046.86

– Acres = hectares x 2.471

The table below shows the square foot equivalents for different acre lot portions commonly used for houses.

An Acre Lot Portion can be measured in various sizes, ranging from 1/4 to 3/4. Below is a table displaying the corresponding Size in Square Feet for each portion.

Acre Lot PortionSize in Square Feet

1/4 Acre | 10,890 sq ft |

1/3 Acre | 14,520 sq ft |

1/2 Acre | 21,780 sq ft |

2/3 Acre | 29,040 sq ft |

3/4 Acre | 32,670 sq ft |

Calculating the acreage of a perfect square or rectangle is simple – multiply the length by the width in your preferred unit to find the area, then convert it to acreage. However, the process becomes more complex when dealing with an irregular lot.

One option is to divide your irregular plot of land into rectangles, find the area of each, and then add them together to determine the number of acres. For example, if your plot of land has an “L” shape, you can split it into two rectangles, calculate the square footage of each, add them together, and then divide by 43,560.

However, if your plot is irregular, digital mapping software offers a more accurate method for determining acreage. Some programs allow you to outline your property on Google maps and obtain an approximate acreage measurement.

Another option is to hire a professional land surveyor, which is the most accurate but also the most expensive way to determine the acreage of irregular lots.

How to Measure the Acreage of a Triangle:

To measure the acreage of a triangle, you need the base and height in your preferred unit of measurement. Use this formula: 0.5 x base x height. Then convert the area to acreage.

For example, let’s measure the acreage of a triangle using feet and square feet.

The triangle has a base of 500 feet and a height of 300 feet. Use this formula to find the square footage:

Square feet = 0.5 x 500 x 300

75,000 = 0.5 x 500 x 300

To determine the acreage, divide the square footage by 43,560:

Acreage = 75,000 ÷ 43,560

1.722 = 75,000 ÷ 43,560

The triangle contains 1.722 acres.

FAQ

To calculate acreage with feet, multiply the width by the length to determine square feet. Then, divide the square footage by 43,560 to determine the acreage.

There are 640 acres in one square mile.

An acre can be any shape, as long as its area adds up to 43,560 square feet or 4,047 square meters.

To find out the number of acres in your property, you can access your county auditor or local tax assessor’s website in the United States to view public land records, which include property values and lot sizes.

The area of 0.23 acres is equal to approximately 10,018.8 square feet.

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