An acreage calculator helps determine how many acres a piece of land contains based on length, width, or total square footage. Whether you’re measuring farmland, pasture, food plots, or property boundaries, accurate acreage calculations are essential for planning, planting, fencing, and fertilizer application.
This guide explains how to calculate acreage manually and shows practical examples for rectangular and irregular land areas.
This number is the foundation of all acreage calculations.
---If your field or property is rectangular:
Field is 600 feet long and 300 feet wide.
If you already know the total square footage:
For irregular shapes:
This method works well for ponds, angled property lines, and curved pasture edges.
---Skip the manual math and calculate instantly:
Open the Free Acreage Calculator
Works for square feet, length & width, and quick farm planning.
A standard American football field (including end zones) is about 1.32 acres.
Surveyors use GPS measurements and mapping software, but acreage is still ultimately based on square footage divided by 43,560.
The easiest method is multiplying length by width and dividing by 43,560 — or using an online acreage calculator.
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