Acreage Calculator
Enter a lot’s length and width to find its area in acres, hectares, square feet and square meters, or convert an area you already know.
How to calculate acreage
Acres = length (ft) × width (ft) ÷ 43,560
One acre is 43,560 square feet. For irregular lots, split the land into rectangles and triangles and add their areas.
Worked example
A lot 330 ft by 660 ft covers 217,800 sq ft. 217,800 ÷ 43,560 = 5 acres, about 2.02 hectares.
Area conversions
| 1 acre equals | Value |
|---|---|
| Square feet | 43,560 |
| Square yards | 4,840 |
| Square meters | 4,046.86 |
| Hectares | 0.4047 |
| Square miles | 1/640 |
Frequently asked questions
How big is an acre?
About 208.7 ft on each side if square, a little smaller than an American football field without the end zones.
How many acres in a hectare?
About 2.471 acres.
How do I measure an irregular lot?
Divide it into simple shapes, find each area, and add them, or use the dimensions on your survey or plat.
How many square feet is half an acre?
21,780 square feet.
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