Acreage Calculator

Convert any plot of land to acres in seconds. Choose your shape, enter the dimensions in feet or meters, and you'll see square feet, acres, hectares, and square meters side by side. Built for builders, land buyers, and anyone trying to picture how much "0.7 acres" really is.

Acreage Calculator

Shape

Input units

Length

Width

Area

Square feet—

Acres—

Hectares—

Square meters—

Common Acreage Comparisons

Reference	Acres	Square feet
1 acre (the standard)	1.00	43,560
American football field (incl. end zones)	1.32	57,600
Soccer pitch (FIFA standard)	1.76	76,650
Suburban quarter-acre lot	0.25	10,890
Basketball court (NBA)	0.108	4,700
Tennis court (doubles)	0.064	2,808
Hectare	2.471	107,639
Square mile	640	27,878,400

An acre is exactly 43,560 square feet — historically the amount of land a single ox-drawn plow could till in one day. A square one acre in area measures roughly 208.7 ft on each side.

How to Calculate Acreage

For rectangular lots, the math is simple: length × width = area in square feet, then divide by 43,560 to get acres. For circles, use π × r². For triangles, ½ × base × height. Irregular lots can be split into rectangles and triangles, summed, and divided by 43,560.

If you only have a deed area in square feet, divide by 43,560 directly. If you have meters, convert: 1 acre = 4,046.86 m². The "Irregular" option in the calculator above accepts a total square footage number directly.