Convert acres to hectares instantly. 1 acre = 0.404686 hectares. Multiply acres by 0.404686 or divide by 2.471 to switch between units.
Last updated: March 2026 | By Summa Calculator
hectares = acres × 0.404686
Reverse conversion: acres = hectares × 2.471
Acres and hectares are the two most common units for measuring land area worldwide. The acre is an imperial/US customary unit primarily used in the United States, United Kingdom, and other Commonwealth countries. The hectare is a metric unit used internationally and is the standard for land measurement in most countries.
One acre equals 43,560 square feet or about 4,047 square meters. Originally based on the amount of land a yoke of oxen could plow in a day, the acre remains the primary land measurement unit in American real estate, agriculture, and forestry. One hectare equals 10,000 square meters (100m × 100m) or approximately 2.471 acres. The term comes from the French "hect-" (100) and "are" (metric area unit).
Hectares are preferred in scientific contexts and international transactions due to their decimal-based system, making calculations straightforward. However, acres remain deeply embedded in American culture, property records, and legal descriptions. Understanding both units is essential for international real estate, land development, farming operations, and comparing properties across different countries.
Select whether you want to convert from Acres to Hectares or from Hectares to Acres using the toggle buttons. The input and output labels will update automatically to match your selection.
Type the land area value you want to convert in the input field. The result appears instantly with up to 6 decimal places for precision in large land calculations.
Check the quick reference table for common conversion values. This helps you quickly estimate land sizes without manual calculation when comparing properties.
Use the swap button to reverse the conversion direction. Click "Add to History" to save your conversions for reference, and use "Reset" to clear the input.
James is an American investor looking at a vineyard property in France. The listing shows 20 hectares, but he's accustomed to thinking in acres for land size comparisons with US properties.
Calculation: 20 hectares × 2.471 = 49.42 acres
Now James can compare this 49.42-acre French vineyard with similar-sized properties in California's wine country, making informed investment decisions using familiar measurements.
1 hectare equals approximately 2.471 acres. To convert hectares to acres, multiply by 2.471. To convert acres to hectares, divide by 2.471 (or multiply by 0.4047).
Acres are used primarily in countries with imperial/US customary systems (USA, UK, Canada). Most other countries use the metric system and measure land in hectares. Historical precedent and property records maintain these differences.
A hectare is significantly larger than an acre. One hectare is 2.471 times the size of an acre. Think of it as: 1 hectare ≈ 2.5 acres, or conversely, 1 acre ≈ 0.4 hectares.
An acre is roughly the size of an American football field (excluding end zones). A hectare is about 2.5 football fields. A hectare is a perfect 100m × 100m square, while an acre is 43,560 square feet in any configuration.
The acre originated in medieval England as the amount of land a yoke of oxen could plow in one day. It was standardized to 43,560 square feet, which equals one furlong (660 feet) by one chain (66 feet).
1 acre equals exactly 0.404686 hectares.
Multiply the number of acres by 0.404686, or divide by 2.471 for the reverse conversion.
Legal property records maintain their original units. US properties remain in acres, European properties in hectares. However, international real estate listings often show both for buyer convenience.
For casual comparisons, rounding to 2.5 acres per hectare is fine. For legal documents, surveying, or property transactions, use the precise 2.471 conversion factor and maintain several decimal places.
Yes! The converter handles decimals. Small residential lots might be 0.25 acres (about 0.1 hectares) or smaller. The precision helps for properties of any size, from small yards to large ranches or forests.
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