Acreage Calculator

Calculate acreage, field area, square feet, square yards, hectares, perimeter, land cost, cost per acre, seed needs, fertilizer needs, and estimated production. Use this acreage calculator for fields, pastures, food plots, hay ground, gardens, lots, and farm planning.

Calculate Acreage

Acres = Square Feet ÷ 43,560.
Your result will appear here.

How the acreage calculator works

Rectangle field:
The calculator multiplies length by width, converts the result to square feet, then divides by 43,560 to estimate acres.

Known area conversion:
Enter a known area in square feet, square yards, square meters, acres, hectares, or square miles to convert it into other units.

Circle or pivot field:
Enter radius to calculate circular acreage for pivots, round fields, tanks, or circular plots.

Land cost:
Acres are multiplied by price per acre or rent per acre to estimate land cost and annual rent.

Why use an acreage calculator?

An acreage calculator helps estimate land area before buying, renting, planting, fertilizing, fencing, or harvesting.

It can help compare acres, square feet, square yards, hectares, perimeter, usable acres, total land cost, annual rent, seed needs, fertilizer needs, expected production, and crop value.

What your result means

Your result shows estimated acres, usable acres, square feet, square yards, square meters, hectares, square miles, perimeter, land cost, annual rent, seed needed, fertilizer needed, expected production, and estimated crop value. These are estimates based on the values you enter.

Acreage formulas

Frequently asked questions

How do you calculate acreage from length and width?

Multiply length by width to get square feet, then divide by 43,560 to convert square feet to acres.

How many square feet are in an acre?

One acre equals 43,560 square feet.

How do you calculate acreage for a circular field?

Square the radius, multiply by π, then convert the area to acres. If the radius is in feet, divide square feet by 43,560.

Why calculate usable acres?

Usable acres account for nonproductive space such as field roads, waterways, tree lines, ditches, buildings, wet areas, and buffers.