Acres to Hectares Converter

Common acre to hectare conversions

How this conversion works

1 acre = 0.40468564 hectares. Multiply acres by 0.40468564.

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What you are converting

Acre

An acre is a unit of land area equal to 43,560 square feet, or about 4,047 square meters. It remains the standard land measure in United States real estate and agriculture, and one acre covers roughly three quarters of an American football field including the end zones.

Hectare

A hectare is a metric unit of land area equal to 10,000 square meters, the area of a square measuring 100 meters on each side. It is the official farm and forestry unit across most of the world, and one hectare is roughly the size of Trafalgar Square in London.

Why convert and when you would use this

Land buyers often see plots quoted in acres in the United States but in hectares in Europe, Australia, and much of Asia. Converting between them lets you compare price per unit of land across countries, estimate crop capacity, and check whether a parcel meets minimum size rules when buying or leasing farmland abroad.

Worked example

To convert 12.5 acres, multiply by 0.40468564: 12.5 × 0.40468564 = 5.0585705 hectares. Rounded to two decimals, a 12.5 acre plot equals about 5.06 hectares. For quick mental checks, remember one acre is just under half a hectare, so ten acres works out to slightly more than four.

Rounding and accuracy

Use two decimal places for everyday estimates, property listings, and casual comparisons. Use four to six decimals for surveying, legal deeds, subsidy applications, or any figure that feeds into further calculations. Carry full precision through intermediate steps and round only the final result to avoid compounding small errors.

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