Convert Hectare to Acre
1 hectare = 2.471054 acre (ac). For example, 10 hectare = 24.71054 acre and 100 hectare = 247.1054 acre. Type any value below to convert hectare to acre both ways — it runs entirely in your browser.
Quick answer: Hectare to Acre
1 Hectare = 2.471054 Acre (ha → ac). To convert hectare to acre, multiply by 2.471054. To convert acre to hectare, multiply by 0.4046856. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common hectare-to-acre questions.
How to convert Hectare to Acre
To convert hectare to acre, multiply the number of hectare by the conversion factor 2.471054, because 1 ha = 2.471054 ac. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 ac = 0.4046856 ha, so you divide by 2.471054 (or multiply by 0.4046856) to turn acre back into hectare.
ac = ha × 2.471054 ·
ha = ac × 0.4046856
- Write down the value you want to convert, in hectare.
- Multiply it by 2.471054.
- The result is the same area/length/quantity expressed in acre.
Hectare to Acre — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 hectare is 12.35527 acre because 5 ha × 2.471054 = 12.35527 ac.
| Hectare | Calculation | Acre |
|---|---|---|
| 1 ha | 1 ha × 2.471054 = 2.471054 ac | 2.471054 ac |
| 2 ha | 2 ha × 2.471054 = 4.942108 ac | 4.942108 ac |
| 3 ha | 3 ha × 2.471054 = 7.413161 ac | 7.413161 ac |
| 5 ha | 5 ha × 2.471054 = 12.35527 ac | 12.35527 ac |
| 7 ha | 7 ha × 2.471054 = 17.29738 ac | 17.29738 ac |
| 10 ha | 10 ha × 2.471054 = 24.71054 ac | 24.71054 ac |
| 12 ha | 12 ha × 2.471054 = 29.65265 ac | 29.65265 ac |
| 15 ha | 15 ha × 2.471054 = 37.06581 ac | 37.06581 ac |
| 20 ha | 20 ha × 2.471054 = 49.42108 ac | 49.42108 ac |
| 25 ha | 25 ha × 2.471054 = 61.77635 ac | 61.77635 ac |
| 50 ha | 50 ha × 2.471054 = 123.5527 ac | 123.5527 ac |
| 100 ha | 100 ha × 2.471054 = 247.1054 ac | 247.1054 ac |
Common Hectare to Acre conversions
These are the hectare-to-acre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 hectare = 2.471054 acre
- 2 hectare = 4.942108 acre
- 2.5 hectare = 6.177635 acre
- 3 hectare = 7.413161 acre
- 4 hectare = 9.884215 acre
- 5 hectare = 12.35527 acre
- 6 hectare = 14.82632 acre
- 7 hectare = 17.29738 acre
- 8 hectare = 19.76843 acre
- 9 hectare = 22.23948 acre
- 10 hectare = 24.71054 acre
- 12 hectare = 29.65265 acre
- 15 hectare = 37.06581 acre
- 20 hectare = 49.42108 acre
- 25 hectare = 61.77635 acre
- 30 hectare = 74.13161 acre
- 50 hectare = 123.5527 acre
- 75 hectare = 185.329 acre
- 100 hectare = 247.1054 acre
- 200 hectare = 494.2108 acre
- 500 hectare = 1,235.527 acre
- 1000 hectare = 2,471.054 acre
Hectare to Acre conversion chart (both directions)
The chart below converts hectare to acre and acre to hectare side by side, so it works whichever way you need. 1 hectare = 2.471054 acre, and 1 acre = 0.4046856 hectare.
| Hectare → Acre | Acre → Hectare |
|---|---|
| 0.25 ha = 0.6177635 ac | 0.25 ac = 0.1011714 ha |
| 0.5 ha = 1.235527 ac | 0.5 ac = 0.2023428 ha |
| 1 ha = 2.471054 ac | 1 ac = 0.4046856 ha |
| 2 ha = 4.942108 ac | 2 ac = 0.8093713 ha |
| 3 ha = 7.413161 ac | 3 ac = 1.214057 ha |
| 4 ha = 9.884215 ac | 4 ac = 1.618743 ha |
| 5 ha = 12.35527 ac | 5 ac = 2.023428 ha |
| 6 ha = 14.82632 ac | 6 ac = 2.428114 ha |
| 7 ha = 17.29738 ac | 7 ac = 2.832799 ha |
| 8 ha = 19.76843 ac | 8 ac = 3.237485 ha |
| 9 ha = 22.23948 ac | 9 ac = 3.642171 ha |
| 10 ha = 24.71054 ac | 10 ac = 4.046856 ha |
| 12 ha = 29.65265 ac | 12 ac = 4.856228 ha |
| 15 ha = 37.06581 ac | 15 ac = 6.070285 ha |
| 20 ha = 49.42108 ac | 20 ac = 8.093713 ha |
| 25 ha = 61.77635 ac | 25 ac = 10.11714 ha |
| 30 ha = 74.13161 ac | 30 ac = 12.14057 ha |
| 40 ha = 98.84215 ac | 40 ac = 16.18743 ha |
| 50 ha = 123.5527 ac | 50 ac = 20.23428 ha |
| 75 ha = 185.329 ac | 75 ac = 30.35142 ha |
| 100 ha = 247.1054 ac | 100 ac = 40.46856 ha |
| 150 ha = 370.6581 ac | 150 ac = 60.70285 ha |
| 200 ha = 494.2108 ac | 200 ac = 80.93713 ha |
| 250 ha = 617.7635 ac | 250 ac = 101.1714 ha |
| 500 ha = 1,235.527 ac | 500 ac = 202.3428 ha |
| 1000 ha = 2,471.054 ac | 1000 ac = 404.6856 ha |
Hectare vs Acre: which is bigger?
A hectare is the larger unit: one hectare equals 2.471054 acres. Put another way, you need 2.471054 acres to make a single hectare.
What is a Hectare? History, origin and usage
The hectare belongs to the metric system created during the French Revolution; the law of 18 Germinal, Year III (1795) defined the are as 100 square metres for measuring land. The hectare is 100 ares, its name combining the Greek hecto- (hundred) with the are.
It is the legal unit for land area across the European Union, Australia, New Zealand, Canada and much of the world, used in agriculture, forestry, planning and land management. In India it appears in official agricultural statistics and land records alongside the acre.
One hectare is 10,000 square metres, about 2.47 acres, and 100 hectares make one square kilometre. It is close in size to an international rugby pitch, which makes it a handy mental yardstick.
What is a Acre? History, origin and usage
The acre is one of the oldest English land measures, its name coming through Norman French from a Germanic root meaning 'cultivated field' (compare German Acker and Latin ager). Historically it was the area a team of eight oxen could plough in a single day, formalised as one chain by one furlong (66 by 660 feet).
It remains a statutory land unit in the United States and across many Commonwealth countries, and in India it is one of the main units for agricultural land alongside the bigha and hectare. It is used for farms, estates and large plots worldwide.
One acre is 4,840 square yards or 43,560 square feet, about 0.405 hectare, and is roughly nine-tenths the size of an American football field. The furlong in its definition literally means a 'furrow long', the distance oxen ploughed before resting.
Convert 1 Hectare to other units
It can help to see a hectare next to the other units it is commonly compared with. One hectare (ha) is equal to:
| 1 Hectare equals | Unit |
|---|---|
| 11,959.9 gaj | Gaj |
| 395.3686 marla | Marla |
| 19.76843 kanal | Kanal |
| 2.471054 killa | Killa |
| 0.09884215 murabba | Murabba |
| 247.1054 decimal | Decimal |
| 247.1054 cent | Cent |
| 98.84215 guntha | Guntha |
| 2.471054 ac | Acre |
| 107,639.1 ft² | Square Foot |
| 11,959.9 yd² | Square Yard |
| 10,000 m² | Square Metre |
| 100,000,000 cm² | Square Centimetre |
| 10,000,000,000 mm² | Square Millimetre |
| 15,500,030 in² | Square Inch |
| 0.01 km² | Square Kilometre |
| 100 are | Are |
| 10 daa | Decare |
| 0.003861022 mi² | Square Mile |
| 2.471054 ac | Acre |
| 11,959.9 yd² | Square Yard |
| 107,639.1 ft² | Square Foot |
| 1 ha | Hectare |
| 3,558.317 karam² | Square Karam |
| 44.84963 ground | Ground |
| 747.4938 lessa | Lessa |
| 2,391.98 chatak | Chatak |
| 1.868734 pura | Pura |
Convert 1 Acre to other units
One acre (ac) is equal to:
| 1 Acre equals | Unit |
|---|---|
| 4,840 gaj | Gaj |
| 160 marla | Marla |
| 8 kanal | Kanal |
| 1 killa | Killa |
| 0.04 murabba | Murabba |
| 100 decimal | Decimal |
| 100 cent | Cent |
| 40 guntha | Guntha |
| 0.4046856 ha | Hectare |
| 43,560 ft² | Square Foot |
| 4,840 yd² | Square Yard |
| 4,046.856 m² | Square Metre |
| 40,468,560 cm² | Square Centimetre |
| 4,046,856,000 mm² | Square Millimetre |
| 6,272,640 in² | Square Inch |
| 0.004046856 km² | Square Kilometre |
| 40.46856 are | Are |
| 4.046856 daa | Decare |
| 0.0015625 mi² | Square Mile |
| 1 ac | Acre |
| 4,840 yd² | Square Yard |
| 43,560 ft² | Square Foot |
| 0.4046856 ha | Hectare |
| 1,440 karam² | Square Karam |
| 18.15 ground | Ground |
| 302.5 lessa | Lessa |
| 968 chatak | Chatak |
| 0.75625 pura | Pura |
Tips for converting Hectare to Acre
- To go from hectare to acre, multiply by 2.471054; to go back, divide by 2.471054 (or multiply by 0.4046856).
- For a quick mental estimate, remember that 1 hectare ≈ 2.471054 acre, so 10 hectare ≈ 24.71054 acre.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Hectare to Acre converter
Type a number into the Hectare field and the equivalent in Acre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Acre field to convert the other way (acre to hectare). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 ha = 2.471054 ac), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for hectare-to-acre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary units. The inch, foot, yard and mile are defined exactly in metres by the 1959 international yard-and-pound agreement, so every imperial figure on this page is exact, not rounded.
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
Indian land units can vary by state and local custom. This converter uses the most widely accepted standard value; always confirm against your local revenue records (patwari / tehsil) for legal transactions.
Frequently asked questions
- How many acre are in 1 hectare?
- 1 hectare = 2.471054 acre (ac). To convert any number of hectare to acre, multiply by 2.471054.
- How do I convert hectare to acre?
- Multiply the number of hectare by 2.471054. For example, 10 hectare = 10 × 2.471054 = 24.71054 acre, and 25 hectare = 61.77635 acre.
- How many hectare are in 1 acre?
- 1 acre = 0.4046856 hectare. So to convert acre back to hectare, multiply by 0.4046856.
- What is the formula to convert hectare to acre?
- acre = hectare × 2.471054. The reverse formula is hectare = acre × 0.4046856.
- How much is 100 hectare in acre?
- 100 hectare = 247.1054 acre. (And 1000 hectare = 2,471.054 acre.)
- Which is bigger, a hectare or a acre?
- A hectare is larger: 1 hectare = 2.471054 acre.
- Is this hectare to acre converter accurate?
- Yes — every value is computed from the exact 2.471054 ac per ha factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert acre to hectare too?
- Yes. The converter works both ways — enter a value in either field. 1 acre = 0.4046856 hectare.