How do I calculate acreage from length and width?

Multiply length by width to get the area in square units, then divide by the number of those units in an acre — 43,560 for square feet, or 4,046.86 for square metres.

One acre is 43,560 square feet, about 4,047 square metres, or roughly the size of a standard American football field without the end zones.

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Area

Acreage Calculator

Enter a plot's length and width to get its area in acres, hectares, square feet, and square metres. Works in feet, yards, or metres.

Area

1.00 acres

Hectares—

Square feet—

Square metres—

Area in different units

The same plot expressed in acres, hectares, and thousands of square feet.

How it works

Acreage is just an area, found by multiplying length by width for a rectangular plot. Convert that area into acres by dividing by the number of square units in one acre.

area = length × width
acres = area (ft²) ÷ 43,560 = area (m²) ÷ 4,046.86

Worked example

A 200 ft × 218 ft plot is 43,600 ft², which is 43,600 ÷ 43,560 ≈ 1.00 acre.

Frequently asked questions

How do I calculate acreage?

Length × width for the area, then divide by 43,560 (ft²) or 4,046.86 (m²) to get acres.

How big is one acre?

43,560 ft² (about 4,047 m²) — roughly a football field without the end zones.