Convert acres to hectares and hectares to acres. Visual scale comparison, quick conversion table, square-side dimensions, and real-world size comparisons.
Acres and hectares are the two most common large-area measurement units in the world. The acre dominates in the United States, United Kingdom, and several other countries, while the hectare is the global metric standard used in agriculture, land management, and international real estate.
This converter provides instant bidirectional conversion between acres and hectares, with results shown in six related units: acres, hectares, square feet, square meters, square miles, and square kilometers. The visual scale comparison illustrates that one hectare is about 2.47 times larger than one acre, making the relationship tangible.
A quick conversion table covers common values from quarter-acre lots to full sections (640 acres), and the size comparisons section puts your measurement alongside familiar landmarks — from tennis courts to Central Park. Real estate professionals, international buyers, farmers, and students all benefit from having precise, contextual conversion at their fingertips. It also reduces reporting mistakes when project documents switch between metric and imperial land units.
The acres-to-hectares conversion factor (2.471) is not intuitive. This tool does the math instantly, provides both imperial and metric results, and contextualizes the area with real-world comparisons. Essential for international real estate, agriculture, and cross-border land transactions where clear, consistent records are critical for contracts, valuation, planning approvals, and compliance reporting.
Acres to Hectares: ha = acres × 0.404686 Hectares to Acres: acres = ha × 2.47105 1 acre = 43,560 ft² = 4,046.86 m² 1 hectare = 10,000 m² = 107,639 ft²
Result: 4.047 hectares
10 acres × 0.404686 = 4.04686 hectares. In square feet: 10 × 43,560 = 435,600 ft². In square meters: 4.047 × 10,000 = 40,469 m². If square-shaped, the lot would be about 660 ft × 660 ft or 201 × 201 m.
The acre predates the metric system by centuries. Deeply embedded in US property law, land records, and agricultural policy, it resists metrication. The hectare, adopted internationally, is preferred for its simplicity (1 ha = 10,000 m²). International trade and real estate increasingly require fluency in both.
Farm sizes are quoted in acres (US) or hectares (global). Crop yields are often measured in bushels per acre or tonnes per hectare. Converting between these is essential for international commodity markets. USDA data uses acres; FAO data uses hectares.
Most US property deeds record area in acres or square feet. International luxury markets often list in hectares. Cross-border buyers need precise conversion to compare properties in different countries and negotiate accurately.
1 hectare = 2.47105 acres. A hectare is roughly 2.5 times the size of an acre.
1 acre = 0.404686 hectares. An acre is about 40% of a hectare.
A hectare is bigger — roughly 2.47× the area of an acre. One hectare = 10,000 m² = 107,639 ft². One acre = 43,560 ft² = 4,047 m².
Acres are part of the imperial system used historically in the US, UK, and former colonies. Hectares are metric (part of SI). Most countries adopted metric for land measurement in the 19th-20th centuries. The US still primarily uses acres for real estate and agriculture.
Multiply hectares by 2.47105 to get acres. Example: a 5 ha property = 12.36 acres. Many international real estate sites list both units.
They are the same thing. A hectare (ha) is defined as 1 square hectometer (hm²) = 100 m × 100 m = 10,000 m².