Productive ToolboxHectare to Acre Converter
Convert hectares to acres and acres to hectares instantly. Free online land area converter with comprehensive reference table, precision control, and conversion history.
Hectare to Acre Converter
Enter any hectare value to instantly convert it to acres. 1 hectare = 2.47105 acres.
Settings
Acres
Enter Hectares
Tip: Press Esc to reset
Quick Presets
Common Conversions
| Hectares | Acres |
|---|---|
| 0.5 | 1.2355 |
| 1 | 2.4711 |
| 2 | 4.9421 |
| 5 | 12.3553 |
| 10 | 24.7105 |
| 25 | 61.7763 |
| 50 | 123.5525 |
| 100 | 247.1050 |
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What Is a Hectare to Acre Converter?
A hectare to acre converter is a free online tool that instantly converts any land area value between hectares (ha) and acres — in both directions. Enter hectares and get acres; use the Swap button and enter acres to get hectares. One tool covers the full ha to acres and acres to hectares conversion without needing separate calculators.
The conversion is anchored to a single fixed relationship: 1 hectare = 2.47105 acres, derived from the international definitions of both units (1 ha = 10,000 m², 1 acre = 4,046.856 m²). Despite being a simple multiplication, the non-round factor means approximations quickly accumulate error — 10 hectares rounded to "about 25 acres" is off by over 1 acre from the correct 24.7105. This tool applies the precise factor to any input, at up to 8 decimal places.
Built for farmers comparing international land data, real estate agents working with cross-border property listings, land surveyors preparing documentation, agricultural researchers processing datasets, and anyone who regularly encounters both metric and imperial land measurements. Free, no signup required.
How Hectare to Acre Conversion Works
Conversion Formulas
Acres = Hectares × 2.47105
Hectares = Acres × 0.404686
Derived from: 1 ha = 10,000 m² and 1 acre = 4,046.856 m²
Factor: 10,000 ÷ 4,046.856 = 2.47105
- 1 hectare = 2.47105 acres = 10,000 m² = 107,639 sq ft
- 1 acre = 0.404686 ha = 4,046.86 m² = 43,560 sq ft
- 100 hectares = 247.105 acres = 1 km²
- 640 acres = 259 hectares = 1 square mile (1 US section)
- Quick mental estimate: multiply hectares by 2.5 (1.2% high — fine for rough checks)
How to Use the Hectare to Acre Converter
Step-by-Step Guide
- 1Enter Your Hectare Value: Type any number of hectares into the input field. Decimals are fully supported — for example, 0.5, 2.47, or 1000. The conversion result appears instantly as you type.
- 2Read the Acre Result: The acre equivalent appears immediately below the input. For a 1 hectare input, the result is 2.47105 acres. The result updates with every keystroke.
- 3Adjust Decimal Precision: Use the precision selector to choose 2, 4, 6, or 8 decimal places depending on how precise your conversion needs to be. 4 decimal places is suitable for most practical applications.
- 4Use Presets or the Chart: Click a preset (1, 5, 10, 50 or 100 ha) or any value in the hectares-to-acres chart further down the page to load it. Links such as ?ha=2.5 open the converter with that value.
- 5Swap to Acres to Hectares: Click the Swap button to reverse the conversion direction — so you can enter acres and receive hectares. The same tool covers both ha to acres and acres to ha.
- 6Copy or Export: Click the copy button to copy the result to clipboard, or download a text report of your conversion history for documentation or client handoff.
What This Tool Provides
- ✓Instant ha to acres conversion
- ✓Reverse conversion: acres to hectares
- ✓2, 4, 6, and 8 decimal precision
- ✓Presets: 1, 5, 10, 50, 100 ha
- ✓Clickable chart from 0.1 to 2,500 ha
- ✓Shareable links to any value, e.g. ?ha=2.5
- ✓Land size context descriptions
- ✓Conversion history (last 10 entries)
- ✓Copy result to clipboard
- ✓Export conversion report
- ✓Private: your inputs are not collected or stored
- ✓No registration required
Worked Examples
International Farm Comparison
An agricultural researcher is comparing yields from European farms (reported in tonnes per hectare) with US farms (bushels per acre), so every farm area has to be in the same unit first. A 450-hectare farm in Germany is 450 × 2.47105 = 1,111.97 acres; a 1,200-acre farm in Iowa is 1,200 × 0.404686 = 485.62 hectares.
Cross-Border Real Estate Listing
A UK estate agency is listing a 8.5-hectare rural property for an American buyer who is accustomed to acres. 8.5 × 2.47105 = 21.00 acres. The agent adds both values to the listing: '8.5 hectares (21.0 acres)' — immediately legible to both metric and imperial markets. The reverse is equally common: a buyer asking about a 55-acre US ranch needs to know it is 22.26 hectares for comparison with European land they already own.
Food Production and Yield Reporting
An agronomist is reporting wheat yield data for a 2,500-hectare operation to an international commodity trader who uses acres. 2,500 × 2.47105 = 6,177.63 acres. The 3.8 tonne/hectare yield becomes: 3.8 × 0.404686 = 1.538 tonne/acre (or approximately 57 bushels/acre at standard wheat density). Both the area and yield conversions depend on the precise 2.47105 factor — not the approximate 2.5 shortcut.
Hectares to Acres Chart
Click any hectare value to load it into the converter. 1 ha = 10,000 m² = 2.47105 acres; a FIFA-size soccer pitch (105 × 68 m) is about 0.71 ha.
| Hectares | Acres | Sq ft |
|---|---|---|
| 0.1 | 0.247 | 10,764 |
| 0.2 | 0.494 | 21,528 |
| 0.3 | 0.741 | 32,292 |
| 0.4 | 0.988 | 43,056 |
| 0.5 | 1.236 | 53,820 |
| 0.6 | 1.483 | 64,583 |
| 0.7 | 1.73 | 75,347 |
| 0.8 | 1.977 | 86,111 |
| 0.9 | 2.224 | 96,875 |
| 1 | 2.471 | 107,639 |
| 2 | 4.942 | 215,278 |
| 3 | 7.413 | 322,917 |
| 4 | 9.884 | 430,556 |
| 5 | 12.355 | 538,196 |
| 6 | 14.826 | 645,835 |
| Hectares | Acres | Sq ft |
|---|---|---|
| 7 | 17.297 | 753,474 |
| 8 | 19.768 | 861,113 |
| 9 | 22.239 | 968,752 |
| 10 | 24.711 | 1,076,391 |
| 11 | 27.182 | 1,184,030 |
| 12 | 29.653 | 1,291,669 |
| 13 | 32.124 | 1,399,308 |
| 14 | 34.595 | 1,506,947 |
| 15 | 37.066 | 1,614,587 |
| 16 | 39.537 | 1,722,226 |
| 17 | 42.008 | 1,829,865 |
| 18 | 44.479 | 1,937,504 |
| 19 | 46.95 | 2,045,143 |
| 20 | 49.421 | 2,152,782 |
| 25 | 61.776 | 2,690,978 |
| Hectares | Acres | Sq ft |
|---|---|---|
| 30 | 74.132 | 3,229,173 |
| 40 | 98.842 | 4,305,564 |
| 50 | 123.553 | 5,381,955 |
| 60 | 148.263 | 6,458,346 |
| 75 | 185.329 | 8,072,933 |
| 100 | 247.105 | 10,763,910 |
| 150 | 370.658 | 16,145,866 |
| 200 | 494.211 | 21,527,821 |
| 250 | 617.763 | 26,909,776 |
| 300 | 741.316 | 32,291,731 |
| 400 | 988.422 | 43,055,642 |
| 500 | 1,235.527 | 53,819,552 |
| 750 | 1,853.29 | 80,729,328 |
| 1,000 | 2,471.054 | 107,639,104 |
| 2,500 | 6,177.635 | 269,097,761 |
Exact factors: 1 ha = 10,000 m² = 2.4710538 acres = 107,639.1 sq ft. Going the other way? Use the acres to hectares converter.
Frequently Asked Questions
How many acres is 1 hectare?
1 hectare equals 2.47105 acres. This is derived from the exact definitions: 1 hectare = 10,000 square meters and 1 acre = 4,046.856 square meters. Dividing: 10,000 ÷ 4,046.856 = 2.47105.
How many hectares is 1 acre?
1 acre equals 0.404686 hectares. This is the reciprocal of the hectare-to-acre factor: 1 ÷ 2.47105 = 0.404686. So 10 acres equals 4.04686 hectares.
Which is bigger — a hectare or an acre?
A hectare is larger. 1 hectare = 2.47105 acres, meaning a hectare is about 2.47 times the size of an acre. A hectare is 10,000 square meters; an acre is 4,046.86 square meters.
How many acres is 0.5 hectares?
0.5 hectares equals 1.23553 acres. Calculation: 0.5 × 2.47105 = 1.23553. Half a hectare is approximately 1.24 acres.
How many acres is 2.5 hectares?
2.5 hectares equals 6.17763 acres. Calculation: 2.5 × 2.47105 = 6.17763.
How many acres is 10 hectares?
10 hectares equals 24.7105 acres. Calculation: 10 × 2.47105 = 24.7105.
How many acres is 100 hectares?
100 hectares equals 247.105 acres. 100 hectares is also 1 square kilometer. Calculation: 100 × 2.47105 = 247.105.
Where are hectares used vs acres?
Hectares are the standard metric land unit used across most of Europe, Asia, Africa, and South America — and by international agricultural and environmental organizations. Acres are primarily used in the United States, United Kingdom, Canada, and a few other countries. Most international farming data, UN statistics, and European land records use hectares.
What is the hectare to acre formula?
Acres = Hectares × 2.47105. For reverse conversion: Hectares = Acres × 0.404686. Both conversion factors are internationally standardized and used in all official land measurement systems.
Is my data private when using this converter?
Yes. We do not collect or store what you enter.
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