Area measurement (square measure) used primarily in the United States. One (1) acre is equal to 43,560 square feet, 4,046.86 square meters, or 0.4047 hectares.

One (1) acre equals 43,560 square feet.
One (1) acre equals 0.4047 hectares.
One (1) acre equals 10 square chains.
One (1) acre equals 160 square rods.
One (1) acre equals 160 square poles.
One (1) acre equals 160 square perches.
One (1) acre equals 4,840 square yards.
One (1) acre equals 4,046.856 square meters.
One (1) acre equals 0.0016 square miles.
One (1) acre equals 0.0016 sections.
One (1) acre equals 0.004 square kilometers.
One (1) acre equals 0.0000434 townships.
One (1) acre equals 1.183676 arpents.
One (1) acre equals 4.0 roods.

Unit of area measurement (usually applied to land) equal to approximately 5/6th of an acre, used in France, Louisiana, and Quebec. One (1) arpent is equal to 0.8448 acres or about 36,800 square feet. For more arpent conversions, see arpent equivalents or conversions or converting arpents.

One (1) arpent is equal to approximately 5/6th of an acre. One (1) arpent is equal to 0.8448 acres. One (1) arpent is equal to 36,800.6256 square feet. One (1) arpent is equal to 4,088.9584 square yards. One (1) arpent is equal to 135.1716 square rods, poles, or perches. One (1) arepent is equal to 8.4482 square chains. One (1) arpent is equal to 3.3793 roods. One (1) arpent is equal to 0.0013 square miles or sections. One (1) arpent is equal to 0.000037 townships. One (1) arpent is equal to 3,18.89 square meters. One (1) arpent is equal to 0.3419 hectares. One (1) arpent is equal to 0.0034 square kilometers.

One (1) acre equals 0.4047 hectares (ha). To convert acres to hectares, multiply the number of acres by 0.4047. For example, 20 acres x 0.4047 hectares per acre = 8.094 hectares.

Surveyor's or square measure system: One (1) acre equals 10 square chains. To convert acres to square chains, multiply the number of acres by 10. For example, 12.8 acres x 10 square chains per acre = 128 square chains.

One (1) acre equals 43,560 square feet. To convert acres to square feet, multiply the number of acres by 43,560. For example, 17.5 acres x 43,560 square feet per acre = 762,300 square feet.

For area measurements, square units refers to total area, while units square refers to the number of units on each side (the length of each side of a square). For example, consider two square pieces of land: one is 7 square miles, and the other is 7 miles square. The total area of the first parcel is 7 square miles. Since the parcel is a square, the length of each side is equal to the square root of 7 square miles, which is approximately 2.65 miles. In contrast, the length of each side of the second parcel is 7 miles, according to the definition above. The total area is therefore 7 miles x 7 miles = 49 square miles.

Common area measurement(square measure) of the metric system, used in most countries of the world. One (1) hectare is equal to 10,000 square meters, 0.01 square kilometers, or 2.471 acres.

One (1) hectare is equal to 10,000 square meters. One (1) hectare is equal to 0.01 square kilometers. One (1) hectare is equal to 2.471 acres. One (1) hectare is equal to 107,639.104 square feet. One (1) hectare is equal to 11,959.9 square yards. One (1) hectare is equal to 395.367 square rods, poles, or perches. One (1) hectare is equal to 24.71 square chains. One (1) hectare is equal to 9.88 roods. One (1) hectare is equal to 2.925 arpents. One (1) hectare is equal to 0.0039 square miles or sections. One (1) hectare is equal to 0.0001 townships.

1. A unit of length or area equal to one linear rod or one square rod, commonly used in land surveys. The terms, rod, pole, and perch are equivalent and may be used interchangeably, although "rod" is the most common. One (1) pole is equal to 25 links, 16.5 feet, or 1/4 (0.25) chain. For conversions and examples, see Rod, pole, or perch equivalents and conversions and the various Converting rods, poles, or perches to... entries.
2. A roundwood product used primarily for structural support. Tree species used for poles are selected for resistance to weather, wear, and mechanical stress and include lodgepole pine, Douglas-fir, western hemlock, and a variety of southern pines.
3. Term applied to trees that have too small a diameter to be considered sawlogs, but are useful as structural supports, flagpoles, etc.
4. The end of an axis, as in poles of the earth or of cellular mitotic spindles in plants and animals.
5. Either of two opposing parts, forces, or situations, as in magnets, batteries, or opinions.

A unit of length used in land surveys. The terms, rods, poles, and perches are equivalent and may be used interchangeably, although "rod" is the most common. One (1) rod is equal to 25 links, 16.5 feet, or 1/4 (0.25) chain. For conversions and examples, see Rod, pole, or perch equivalents and conversions and the various Converting rods, poles, or perches to... entries.

Unit of area measurement equal to 1/4 (0.25) acre, 40 square rods, or 10,890.0 square feet. For more rood conversions, see rood conversions or equivalents or converting roods.

One (1) rood is equal to 1/4 (0.25) acre. One (1) rood is equal to 40 square rods. One (1) rood is equal to 2.5 square chains. One (1) rood is equal to 10,890.0 square feet. One (1) rood is equal to 1,210.0square yards. One (1) rood is equal to 0.2959 arpents. One (1) rood is equal to 0.0004 sections or square miles. One (1) rood is equal to 0.00001 townships. One (1) rood is equal to 1,011.7141 square meters. One (1) rood is equal to 0.1012 hectares. One (1) rood is equal to 0.001 square kilometers.

A section is a tract of land approximately one (1) mile square and containing 640 acres, within a township. Sections are used in the government rectangular survey system (U.S. Public Lands Survey). Each section is approximately 1/36th (0.0278) of a township. Irregularities exist due to the curvature of the earth; these irregularities are corrected for in the northern and western tiers of sections in each township. One (1) section is equal to 640 acres, one (1) mile square, one (1) square mile, and 27,878,400 square feet.

One (1) section of a township is one (1) mile square and has an area of one (1) square mile. One (1) section is equal to 640 acres. One (1) section is equal to 27,878,400 square feet. One (1) section is equal to 2.59 square kilometers. One (1) section is equal to 3,097,600 square yards. One (1) section is equal to 102,399.59 square rods, poles, or perches. One (1) section is equal to 6,399.9744 square chains. One (1) section is equal to 2,560.0 roods. One (1) section is equal to 757.5523 arpents. One (1) section is equal to 0.0278 (1/36th) townships. One (1) section is equal to 2,589,988.1103 square meters. One (1) section is equal to 258.9988 hectares.

A unit of area measurement (square measure) that is one (1) Gunter's or surveyor's chain in length on each side. There are ten (10) square chains in one (1) acre of land. One (1) square chain is equal to 4,356.0 square feet or 404.687 square meters.

One (1) square chain is equal to 4,356.0 square feet. One (1) square chain is equal to 484.002 square yards. One (1) square chain is equal to 404.687 square meters. One (1) square chain is equal to 16.0 square rods, poles, or perches. One (1) square chain is equal to 0.4 roods. One (1) square chain is equal to 0.1184 arpents. One (1) square chain is equal to 0.1 acres. One (1) square chain is equal to 0.0405 hectares. One (1) square chain is equal to 0.0004 square kilometers. One (1) square chain is equal to 0.0002 square miles or sections. One (1) square chain is equal to 0.000004 townships.

A unit of area measurement (square measure) that is one (1) foot long on each side. One (1) acre of land contains 43,560 square feet. One (1) square foot is equal to 0.09 square meters.

One (1) square foot is equal to 0.0929 square meters. One (1) square foot is equal to 0.1111 square yards. One (1) square foot is equal to 0.0037 square rods, poles, or perches. One (1) square foot is equal to 0.0002 square chains. One (1) square foot is equal to 0.00002 acres. One (1) foot is equal to 0.000009 hectares. One (1) square foot is equal to 0.00009 roods. One (1) square foot is equal to 0.00003 arpents.

A common unit of metric area measurement that is one (1) kilometer in length on each side. One (1) square kilometer is equal to 1,000,000 square meters, 100 hectares, or 0.386 square miles.

One (1) square kilometer is equal to 1,000,000 square meters. One (1) square kilometer is equal to 100 hectares. One (1) square kilometer is equal to 0.3861 square miles. One (1) square kilometer is equal to 247.10538 acres. One (1) square kilometer is equal to 10,763,910.42 square feet. One (1) square kilometer is equal to 1,195,990.046 square yards. One (1) square kilometer is equal to 39,536.703 square rods, poles, or perches. One (1) square kilometer is equal to 2,471.044 square chains. One (1) square kilometer is equal to 988.422 roods. One (1) square kilometer is equal to 292.4926 arpents. One (1) kilometer is equal to 0.0107 townships.

A unit of area measurement (square measure) that is one (1) meter long on each side. One (1) hectare of land contains 10,000 square meters. One (1) square meter is equal to 1.196 square yards or 10.764 square feet.

One (1) square meter is equal to 10.764 square feet. One (1) square meter is equal to 1.196 square yards. One (1) square meter is equal to 0.0395 square rods, poles, or perches. One (1) square meter is equal to 0.0025 square chains. One (1) square meter is equal to 0.001 roods. One (1) square meter is equal to 0.0003 arpents. One (1) square meter is equal to 0.00025 acres. One (1) square meter is equal to 0.0001 hectares. One (1) square meter is equal to 0.000001 square kilometers. One (1) hectare is equal to 10,000 square meters. One (1) square kilometer is equal to 1,000,000 square meters. One (1) square meter is equal to 10,000 square centimeters.

A unit of area measurement used in the English measurement and Government Rectangular Survey systems. One (1) square mile is equal to one section (1/36th) of a township, or 640 acres. See square mile equivalents or converting square miles for more conversions and equivalents.