# Acreage Calculator: Find Acres From Length and Width | FOUND

Calculate the acreage of a rectangular lot or field from its length and width in feet. Shows square feet, acres, hectares, and the perimeter.

Canonical: https://lotsfound.com/tools/acreage-calculator/

## Acreage calculator

Enter the length and width of a rectangular tract in feet. The calculator returns the area in acres, square feet, and hectares.

## The formula

Acres = (length in feet × width in feet) ÷ 43,560.

The default above, 660 feet by 66 feet, is the original acre: one furlong by one chain.

## Irregular shapes

Most parcels are not rectangles. For an irregular tract, split the shape into rectangles and triangles, find each area, and add them. The area of a triangle is half its base times its height. County parcel maps report an acreage for each parcel, and a survey gives the figure you can rely on.

## Acreage on paper and acreage you can use

The area of a tract is the starting figure. Floodplain, wetlands, slopes, and easements reduce what can be built on. See the [usable acreage calculator](/tools/usable-acreage-calculator/).

## Questions

### How do I calculate acreage?

Multiply the length by the width in feet, then divide by 43,560.

### How many feet is one acre on each side?

A square acre is about 208.7 feet on each side.

### What are the dimensions of an acre?

An acre is an area, so it has no fixed shape. 660 by 66 feet, about 208.7 by 208.7 feet, and 435.6 by 100 feet are all one acre.

Transactions are handled through a licensed North Carolina real estate brokerage.