Common Hectares to Acres Conversions
Every frequently searched value, pre-calculated in both directions — plus a live calculator for anything else.
Result
2.47105acres
1 hectare equals 2.47105 acres
That's about 1.4 football pitches
Formula used: hectares × 2.47105 = acres
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Relative plot size
What this chart shows
This chart lists the most commonly searched land area conversions between hectares and acres, calculated with the standard factor of 1 hectare = 2.47105 acres. Values run from 1 to 1,000 in both directions. To convert any figure not listed, multiply hectares by 2.47105, or multiply acres by 0.404686.
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Formula
How these values are calculated
Every row in the table below comes from one of two multiplications. There is no rounding in the calculation itself — figures are rounded only when displayed.
- 1To convert hectares to acres, multiply the hectare figure by 2.47105.
- 2To convert acres to hectares, multiply the acre figure by 0.404686.
- 3Both factors come from the units' exact definitions: 1 hectare = 10,000 m² and 1 acre = 4,046.8564224 m².
Reference
Full conversion table
Both directions are listed side by side. Read across a row to see what that number converts to in the other unit.
| Value | Hectares → Acres | Acres → Hectares |
|---|---|---|
| 1 | 2.47105 acres | 0.404686 hectares |
| 2 | 4.94211 acres | 0.809371 hectares |
| 3 | 7.41316 acres | 1.21406 hectares |
| 4 | 9.88422 acres | 1.61874 hectares |
| 5 | 12.3553 acres | 2.02343 hectares |
| 6 | 14.8263 acres | 2.42811 hectares |
| 7 | 17.2974 acres | 2.8328 hectares |
| 8 | 19.7684 acres | 3.23749 hectares |
| 9 | 22.2395 acres | 3.64217 hectares |
| 10 | 24.7105 acres | 4.04686 hectares |
| 11 | 27.1816 acres | 4.45154 hectares |
| 12 | 29.6526 acres | 4.85623 hectares |
| 13 | 32.1237 acres | 5.26091 hectares |
| 14 | 34.5948 acres | 5.6656 hectares |
| 15 | 37.0658 acres | 6.07028 hectares |
| 16 | 39.5369 acres | 6.47497 hectares |
| 17 | 42.0079 acres | 6.87966 hectares |
| 18 | 44.479 acres | 7.28434 hectares |
| 19 | 46.95 acres | 7.68903 hectares |
| 20 | 49.4211 acres | 8.09371 hectares |
| 25 | 61.7763 acres | 10.1171 hectares |
| 30 | 74.1316 acres | 12.1406 hectares |
| 35 | 86.4869 acres | 14.164 hectares |
| 40 | 98.8422 acres | 16.1874 hectares |
| 45 | 111.197 acres | 18.2109 hectares |
| 50 | 123.553 acres | 20.2343 hectares |
| 60 | 148.263 acres | 24.2811 hectares |
| 70 | 172.974 acres | 28.328 hectares |
| 75 | 185.329 acres | 30.3514 hectares |
| 80 | 197.684 acres | 32.3749 hectares |
| 90 | 222.395 acres | 36.4217 hectares |
| 100 | 247.105 acres | 40.4686 hectares |
| 125 | 308.882 acres | 50.5857 hectares |
| 150 | 370.658 acres | 60.7028 hectares |
| 200 | 494.211 acres | 80.9371 hectares |
| 250 | 617.763 acres | 101.171 hectares |
| 300 | 741.316 acres | 121.406 hectares |
| 400 | 988.422 acres | 161.874 hectares |
| 500 | 1,235.53 acres | 202.343 hectares |
| 750 | 1,853.29 acres | 303.514 hectares |
| 1,000 | 2,471.05 acres | 404.686 hectares |
Accuracy
Accuracy and assumptions
All figures use the international definitions of both units, so the conversion is identical in every country. Table values are shown to six significant figures — the same precision as the published conversion factors. Neither unit varies by region or by the type of land being measured, so these numbers do not need adjusting for local practice.
Key facts
Key facts worth knowing
- 1 hectare is exactly 10,000 square metres — a square measuring 100 m on each side.
- 1 acre is exactly 4,046.8564224 square metres, or 43,560 square feet.
- 100 hectares equals 1 square kilometre; 640 acres equals 1 square mile.
- 1 hectare is roughly 1.4 football pitches. A US football field including end zones is about 0.54 hectares.
- The conversion has been fixed since the 1959 international yard and pound agreement — it does not change over time.
If any of that needs unpacking, we cover what a hectare actually is, where the acre came from, and how many football pitches fit in a hectare in more depth. For the wider picture, see which countries use hectares and which use acres, or the FAQ hub for short answers.
Need the full explanation?
The main calculator page covers what hectares and acres actually are, which countries use each, and the methodology behind these figures.
Use cases
Who uses this chart
Property buyers
Checking a listing quoted in hectares against the acre figures they are used to, without doing the arithmetic each time.
Farmers and land managers
Comparing field and parcel sizes across paperwork that mixes metric and imperial units.
Students and researchers
Looking up a standard value quickly while working through coursework or a dataset.
FAQ
Questions about these conversions
100 hectares equals 247.105 acres. The calculation is 100 × 2.47105. For context, 100 hectares is exactly one square kilometre — a substantial commercial farm, or roughly 140 football pitches of land.
5 acres equals 2.02343 hectares. The calculation is 5 × 0.404686. That is a common size for a rural homestead or smallholding, and works out to roughly three football pitches.
1,000 hectares equals 2,471.05 acres. That is 10 square kilometres of land — the scale of a large estate, plantation or nature reserve rather than an individual farm.
20 acres equals about 8.0937 hectares. The calculation is 20 × 0.404686. Twenty acres is a typical size for a small working farm or a large rural property in the United States.
Yes. Both the hectare and the international acre have exact legal definitions in square metres, so 1 hectare is 2.47105 acres in every country. Unlike some historical units, neither varies by region, by year, or by the type of land.
Privacy
Private by design
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- Standard conversion (1 ha = 2.47105 ac)
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Convert any value you need
The chart covers the numbers people search for most, but the calculator above handles anything — decimals, awkward figures, or values in the tens of thousands. Bookmark this page for quick reference.