On this page
- How to convert hectares to acres
- How to convert acres to hectares
- Hectares to acres conversion table
- Acres to hectares conversion table
- What is a hectare?
- What is an acre?
- Hectare vs acre
- Hectares in other area units
- Hectares and acres in land listings and farming
- Converting hectares to acres at a glance
- Frequently asked questions
How to convert hectares to acres
Multiply the number of hectares by 2.471 to get acres. The exact factor is 2.4710538, because a hectare is 10,000 m² and an acre is 4,046.8564224 m².
Hectares to acres examples
- 1 ha × 2.471 = 2.47 acres.
- 40 ha × 2.471 = 98.8 acres, a mid-size farm.
- 0.5 ha × 2.471 = 1.24 acres, a large house lot.
The converter above shows the result in acres, square meters, square feet and square miles at once. Use "Swap units" to convert acres to hectares.
How to convert acres to hectares
Multiply acres by 0.4047, or divide them by 2.471. A 160 acre quarter section is 160 × 0.4047 = 64.75 hectares; a 5 acre lot is 2.02 hectares.
Hectares to acres conversion table
| Hectares | Acres | Square meters | Square feet |
|---|---|---|---|
| 0.1 | 0.247 | 1,000 | 10,764 |
| 0.25 | 0.618 | 2,500 | 26,910 |
| 0.5 | 1.236 | 5,000 | 53,820 |
| 1 | 2.471 | 10,000 | 107,639 |
| 2 | 4.942 | 20,000 | 215,278 |
| 5 | 12.355 | 50,000 | 538,196 |
| 10 | 24.711 | 100,000 | 1,076,391 |
| 20 | 49.421 | 200,000 | 2,152,782 |
| 25 | 61.776 | 250,000 | 2,690,978 |
| 50 | 123.553 | 500,000 | 5,381,955 |
| 100 | 247.105 | 1,000,000 | 10,763,910 |
| 1000 | 2,471.054 | 10,000,000 | 107,639,104 |
Acres to hectares conversion table
| Acres | Hectares | Square meters |
|---|---|---|
| 0.25 | 0.1012 | 1,012 |
| 0.5 | 0.2023 | 2,023 |
| 1 | 0.4047 | 4,047 |
| 2 | 0.8094 | 8,094 |
| 5 | 2.0234 | 20,234 |
| 10 | 4.0469 | 40,469 |
| 20 | 8.0937 | 80,937 |
| 40 | 16.1874 | 161,874 |
| 100 | 40.4686 | 404,686 |
| 160 | 64.7497 | 647,497 |
| 640 | 258.9988 | 2,589,988 |
What is a hectare?
A hectare (symbol ha) is a metric unit of area equal to 10,000 square meters: a square 100 meters on each side. The name joins the prefix hecto, meaning 100, and the are, an older unit of 100 m². One hectare is one hundred ares.
The hectare is not an SI unit, but NIST Special Publication 811 lists it among the units accepted for use with the International System of Units, for land and agricultural area. Most countries that use the metric system list land in hectares.
What is an acre?
An acre is a US customary and imperial unit of area equal to 43,560 square feet, or 4,840 square yards, per NIST Handbook 44. It comes from a strip one chain (66 ft) wide and one furlong (660 ft) long. In the United States land is still measured and sold by the acre.
Hectare vs acre
| Hectare | Acre | |
|---|---|---|
| Area | 10,000 m² (107,639 sq ft) | 4,046.86 m² (43,560 sq ft) |
| In the other unit | 2.471 acres | 0.4047 hectares |
| System | Metric (accepted for use with the SI) | US customary and imperial |
| Square of the same size | 100 × 100 m | About 63.6 × 63.6 m (208.7 × 208.7 ft) |
| Where it is used | Europe, Canada, Australia, most of the world | United States, UK property, some Commonwealth listings |
Hectares in other area units
- 1 hectare = 10,000 square meters = 107,639 square feet = 11,960 square yards.
- 100 hectares = 1 square kilometer = 247.1 acres.
- 259 hectares = 1 square mile = 640 acres.
- 1 are = 100 m² = 0.01 hectare.
- 1 square meter = 10,000 square centimeters = 1,000,000 square millimeters = about 1,550 square inches.
The hectare is defined from the meter, and the acre from the international foot, so both conversions are exact. The result is as accurate as the land measure you start from; a centimeter or millimeter never matters at this scale.
Hectares and acres in land listings and farming
Land listings in Europe, Canada, Australia and most of the world give the size in hectares; US listings give acres. Convert before you compare: a price per hectare is 2.471 times the price per acre for the same land, so €24,710 per hectare is about €10,000 per acre.
Seed, fertilizer and spray labels follow the same rule. A rate per hectare divided by 2.471 gives the rate per acre, and a rate per acre multiplied by 2.471 gives the rate per hectare.
Check the listing's unit
Some listings abroad mix hectares, ares and square meters. Convert every figure to one unit before you compare parcels, and check the size on the official land registry record.
Measuring the land yourself? Get acres, square feet and hectares straight from the sides of the parcel.
Acreage calculatorConverting hectares to acres at a glance
Multiply hectares by 2.471 to convert hectares to acres, multiply acres by 0.4047 to get hectares, and use the converter above to see every unit at once. The factors are exact definitions, so the result is as precise as the number you enter.
Frequently asked questions
How many acres is 1 hectare?
1 hectare is 2.471 acres (2.4710538 to seven decimals). A hectare is 10,000 square meters, and an acre is 4,046.86 square meters.
How do I convert acres to hectares?
Multiply acres by 0.4047, or divide by 2.471. 10 acres × 0.4047 = 4.05 hectares, and 160 acres is 64.75 hectares.
How big is a hectare?
A hectare is 10,000 square meters: a square 100 meters on each side, about 107,639 square feet. That is about 2.5 times the size of an acre.
Is a hectare bigger than an acre?
Yes. One hectare is about 2.47 acres, so a parcel listed at 40 hectares is close to 99 acres.
How many hectares are in a square kilometer?
100. A square kilometer is 1,000,000 square meters, or 100 hectares, about 247 acres. A square mile is 259 hectares.
Is the hectare an SI unit?
Not strictly. NIST Special Publication 811 lists the hectare (1 ha = 10⁴ m²) among the non-SI units accepted for use with the SI, used for agrarian area.
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