Measure the length and width of the land in feet
Multiply length by width to get square feet
For irregular shapes, divide the land into smaller shapes, calculate each area, and add them together
Convert square feet to acres by dividing by 43,560
Use this formula: Acres = Square feet ÷ 43,560
If measurements are in yards, convert to feet first by multiplying by 3
If measurements are in meters, convert to square feet first or use the conversion: 1 acre = 4,046.86 square meters
For a rectangular plot, use: Acres = (length × width) ÷ 43,560
For a circular plot, use: Acres = π × radius² ÷ 43,560
For a triangular plot, use: Acres = (base × height ÷ 2) ÷ 43,560