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Finance Calc Kit
Real estate

Acreage Calculator

Calculate land acreage from dimensions in feet, meters, or yards. Supports rectangular, triangular, and circular shapes with unit conversions.

Land dimensions

Area

0.688705 acres

Unit conversions

Square feet30,000 sq ft
Square meters2,787.09 sq m
Hectares0.278709 ha
Perches (sq rods)110.19 perches
Square yards3,333.33 sq yd
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What is an acre?

An acre is a unit of land area in the imperial and U.S. customary systems. One acre equals 43,560 square feet, 4,840 square yards, or about 4,046.86 square meters. It remains the standard measure for real estate, farmland, and large residential lots in the United States.

This calculator converts rectangular, triangular, and circular dimensions in feet, meters, or yards into acres and related area units. Enter your shape and measurements to get instant conversions.

Acreage formulas by shape

Rectangle or square

Acres=Length×Width43,560\text{Acres} = \frac{\text{Length} \times \text{Width}}{43{,}560}

Triangle

Acres=Base×Height2×43,560\text{Acres} = \frac{\text{Base} \times \text{Height}}{2 \times 43{,}560}

Circle

Acres=πr243,560\text{Acres} = \frac{\pi r^2}{43{,}560}

Worked example: 200 ft by 150 ft rectangle

  1. Area in square feet: 200 x 150 = 30,000 sq ft
  2. Acres: 30,000 / 43,560 = 0.6887 acres
  3. Square meters: 30,000 / 10.764 = about 2,787 sq m
  4. Hectares: 0.6887 x 0.404686 = about 0.279 ha

Acreage conversion reference

  • 1 acre = 43,560 square feet
  • 1 acre = 4,046.86 square meters
  • 1 acre = 0.404686 hectares
  • 1 acre = 160 perches (square rods)
  • 1 acre = 4,840 square yards
  • 1 hectare = 2.47105 acres

Frequently asked questions

What is the difference between an acre and a hectare?
A hectare equals 10,000 square meters, while an acre is about 4,046.86 square meters. One hectare equals approximately 2.471 acres.
How many acres is a football field?
A standard American football field including end zones is about 1.32 acres. The playing field without end zones is about 1.10 acres.
What is a perch in land measurement?
A perch (square rod) equals 272.25 square feet. One acre contains 160 perches.
How do I calculate acreage for an irregular lot?
Divide the parcel into rectangles, triangles, and partial circles, calculate each area, and sum them. For complex boundaries, use a licensed surveyor.
Do I need to convert meters to feet first?
No. Select meters as the unit and the calculator converts to square feet and acres automatically.

Resources and references

The formulas and methods in this calculator were checked against these independent sources.